My MacBook Pro won't start after update to El Capitan, how can I go back?

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• Mac pro hangs at startup after update to El Capitan

  TTITLE says it all.  Computer works only in start mode course now.  Was able to download and run EtreCheck in secure boot mode.  Results below.  Results of the last log less than kernel panic.  Can anyone help?

  EtreCheck version: 2.9.12 (265)

  Report generated 2016-06-29 12:38:32

  Download https://etrecheck.com EtreCheck

  Time 02:08

  Performance: Excellent

  Click the [Support] links to help with non-Apple products.

  Click the [details] links for more information on this line.

  Problem: The computer is restarted

  Description:

  Kernel panic causing the system to crash after update to El Capitan

  Hardware information: ⓘ

  Mac Pro (end 2013)

  [Technical details] - [User Guide] - [warranty & Service]

  Mac Pro - model: MacPro6, 1

  1 3.5 GHz 6-Core Intel Xeon CPU E5: 6 strands

  16 GB expandable RAM - [Instructions]

  DIMM1

  ok 4 GB ECC DDR3 1866 MHz

  DIMM2

  ok 4 GB ECC DDR3 1866 MHz

  DIMM3

  ok 4 GB ECC DDR3 1866 MHz

  DIMM4

  ok 4 GB ECC DDR3 1866 MHz

  Bluetooth: Good - transfer/Airdrop2 taken in charge

  Wireless: en2: 802.11 a/b/g/n/ac

  Video information: ⓘ

  AMD over-pants D500 - VRAM: 3072 MB

  AMD over-pants D500 - VRAM: 3072 MB

  PA271W 2560 x 1440 @ 60 Hz

  System software: ⓘ

  OS X El Capitan 10.11.5 (15F34) - since startup time: less than an hour

  Disk information: ⓘ

  APPLE SSD SM0512F Disk0: (500,28 GB) (Solid State - TRIM: Yes)

  EFI (disk0s1) < not mounted >: 210 MB

  Macintosh HD (disk0s2) /: 499,42 go-go (345,03 free)

  Recovery HD (disk0s3) < not mounted > [recovery]: 650 MB

  USB information: ⓘ

  Apple Inc. BRCM20702 hub.

  Apple Inc. Bluetooth USB host controller.

  Hub keyboard Apple, Inc.

  HP HP wireless KB and MS

  Apple Inc. Apple Keyboard

  FireWire information: ⓘ

  G-TECH G-DRIVE 400mbit - 800 max

  EFI (disk1s1) < not mounted >: 210 MB

  Backup of Volumes/NeonBunny NeonBunny Backup (disk1s2): 1.00 TB (187,87 GB free)

  Office backup HD (disk1s3) Volumes/Desktop HD backup: 999,72 go-go (406,82 free)

  G-TECH OEM ATA Device 00 800-800 max

  EFI (disk2s1) < not mounted >: 210 MB

  Time Machine (disk2s2) Volumes/Time Machine: 1,00 TB (562,63 GB free)

  Desktop Hard Drive (disk2s3) Volumes/Desktop Hard Drive: 999,52 go-go (406,55 free)

  Information crush: ⓘ

  Apple Inc. Thunderbolt_bus_2.

  Apple Inc. Thunderbolt_bus_1.

  Thunderbolt of Apple Inc. to FireWire adapter

  Apple Inc. Thunderbolt_bus_0.

  Configuration files: ⓘ

  / etc/hosts - Count: 22

  Goalkeeper: ⓘ

  Mac App Store and identified developers

  Kernel Extensions: ⓘ

  / Library/Extensions

  [no charge] jp.co.pioneer.driver.DJM - 900nexusAudio (1.4.0 - SDK 10.10 - 2016-06-25) [Support]

  [no charge] jp.co.roland.RDUSB017CDev (1.0.0 - SDK 10.9-2016-06-25) [Support]

  / System/Library/Extensions

  com.nvidia.CUDA [no charge] (1.1.0 - 2016-06-25) [Support]

  com.paceap.kext.pacesupport.master [no charge] (5.9 - 10.6 SDK - 2016-06-25) [Support]

  /System/Library/Extensions/PACESupportFamily.kext/contents/plugins

  com.paceap.kext.pacesupport.Leopard [no charge] (5.9 - 10.4 SDK - 2012-07-11) [Support]

  [no charge] com.paceap.kext.pacesupport.Panther (5.9 - SDK 10.-1-2012-07-11) [Support]

  com.paceap.kext.pacesupport.snowleopard [no charge] (5.9 - 10.6 SDK - 2012-07-11) [Support]

  com.paceap.kext.pacesupport.Tiger [no charge] (5.9 - 10.4 SDK - 2012-07-11) [Support]

  Launch system officers: ⓘ

  [loaded] 9 tasks Apple

  [loading] 163 tasks Apple

  [operation] 66 tasks Apple

  Demons of launch system: ⓘ

  com.Apple.watchdogd.plist [failure]

  [loaded] 44 tasks Apple

  [loading] 162 tasks Apple

  [operation] 84 tasks Apple

  Launch officers: ⓘ

  [no charge] com.adobe.AAM.Updater - 1.0.plist (2015-06-23) [Support]

  com.extensis.FMCore.plist [no charge] (2016-06-26) [Support]

  com.Fortinet.FortiClient.fssoagent_launchagent.plist [no charge] (2015-01-16) [Support]

  com.nvidia.CUDASoftwareUpdate.plist [no charge] (2016-06-29) [Support]

  [no charge] com.oracle.java.Java - Updater.plist (2014-12-05) [Support]

  com.RealVNC.vncserver.PerUser.plist [no charge] (2014-04-01) [Support]

  com.RealVNC.vncserver.prelogin.plist [no charge] (2014-04-01) [Support]

  Launch of the demons: ⓘ

  [no charge]    PACESupport.plist (2012-07-11) [Support]

  com.adobe.SwitchBoard.plist [no charge] (2014-05-29) [Support]

  com.Adobe.fpsaud.plist [no charge] (2016-06-13) [Support]

  com.barebones.BBEdit.plist [no charge] (2014-06-19) [Support]

  com.Bombich.ccchelper.plist [no charge] (2016-06-25) [Support]

  com.CrashPlan.engine.plist [no charge] (2016-05-17) [Support]

  com.GoPro.stereomodestatus.plist [no charge] (2014-01-29) [Support]

  com.Microsoft.Office.licensing.helper.plist [no charge] (2011-03-10) [Support]

  com.nvidia.Cuda.Launcher.plist [no charge] (2014-11-05) [Support]

  [no charge] com.oracle.java.Helper - Tool.plist (2014-12-05) [Support]

  com.RealVNC.vncserver.plist [no charge] (2014-04-01) [Support]

  Other applications: ⓘ

  [ongoing] com.etresoft.EtreCheck.268512

  [ongoing] org.Mozilla.Firefox.251872

  [loading] 419 tasks Apple

  [operation] 158 tasks Apple

  Internet Plug-ins: ⓘ

  AdobeAAMDetect: AdobeAAMDetect 1.0.0.0 - SDK 10.6 (2015-06-23) [Support]

  FlashPlayer - 10.6: 22.0.0.192 - SDK 10.9 (2016-06-26) [Support]

  QuickTime Plugin: 7.7.3 (2016-05-04)

  AdobePDFViewerNPAPI: 11.0.04 - 10.6 SDK (07 / 07/2014) [Support]

  AdobePDFViewer: 11.0.04 - 10.6 SDK (07 / 07/2014) [Support]

  Flash Player: 22.0.0.192 - SDK 10.9 (2016-06-26) [Support]

  Default browser: 601 - SDK 10.11 (2016-05-04)

  SharePointBrowserPlugin: 14.4.3 - 10.6 SDK (2014 / 07 / 08) [Support]

  Silverlight: 5.1.41212.0 - SDK 10.6 (2016-05-03) [Support]

  JavaAppletPlugin: Java 8 73 02 version Check build update (06-02-2016)

  3rd party preference panes: ⓘ

  Preferences CUDA (2014-08-21) [Support]

  Flash Player (2016-06-13) [Support]

  GoPro (2014-06-01) [Support]

  Java (2016-02-06) [Support]

  TR-8 (2013-12-05) [Support]

  Time Machine: ⓘ

  Automatic backup: YES

  Volumes to back up:

  Macintosh HD: Disc size: 499,42 GB disc used: 154,39 GB

  Destinations:

  Time Machine [Local]

  Total size: 1.00 TB

  Total number of backups: 128

  An older backup: 29/05/14, 18:39

  Last backup: 29/06/16, 11:48

  Size of backup drive: adequate

  Backup size 1.00 TB > (disc 154,39 GB X 3)

  Top of page process CPU: ⓘ

  16% firefox

  2% WindowServer

  2% fontd

  0% kernel_task

  0% CVMCompiler (2)

  Top of the process of memory: ⓘ

  Kernel_task 755 MB

  Firefox 541 MB

  Softwareupdated 524 MB

  Sharingd 147 MB

  WindowServer 115 MB

  Information about virtual memory: ⓘ

  9,38 GB of free RAM

  6.61 GB used RAM (1.66 GB being cached)

  Used Swap 0 B

  Diagnostic information: ⓘ

  June 29, 2016, 12:33:17 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-123317_[redacted].panic [details]

  June 29, 2016, 12:32:38 self-test - spent

  June 29, 2016, 12:21:38 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-122138_[redacted].panic [details]

  June 29, 2016, 12:19:55 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-121955_[redacted].panic [details]

  June 29, 2016, 12:03:34 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-120334_[redacted].panic [details]

  June 29, 2016, 11:44:36 /Library/Logs/DiagnosticReports/backupd_2016-06-29-114436_[redacted].cpu_resour ce.diag [details]

  / System/Library/CoreServices/backupd. Bundle/happy/Resources/backupd

  June 29, 2016, 11:39:19 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-113919_[redacted].panic [details]

  June 29, 2016, 11:37:02 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-113702_[redacted].panic [details]

  June 29, 2016, 11:35:45 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-113545_[redacted].panic [details]

  June 29, 2016, 11:18:35 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-111835_[redacted].panic [details]

  June 29, 2016, 11:16:58 /Library/Logs/DiagnosticReports/Kernel_2016-06-29-111658_[redacted].panic [details]

  June 28, 2016, 23:20:06 /Library/Logs/DiagnosticReports/CrashPlanService_2016-06-28-232006_[redacted].c pu_resource.diag [details]

  /Applications/CrashPlan.app/Contents/MacOS/crashplanservice

  June 28, 2016, 22:52:23 /Library/Logs/DiagnosticReports/Kernel_2016-06-28-225223_[redacted].panic [details]

  Anonymous UUID:

  D8BD978F-CE20-BC0E-9AE3-B2CAD98D978B

  Wed Jun 29 12:33:17 2016

  Panic report *.

  panic (cpu 0 0xffffff801ab04687 appellant): "hfs_swap_HFSPlusBTInternalNode: invalid key length catalogue #0 (3)\n"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.50.21/bsd/hfs/hfs_end ian.c:544 ".

  Backtrace (CPU 0), frame: return address

  0xffffff921ffeae10: 0xffffff801a6dab12

  0xffffff921ffeae90: 0xffffff801ab04687

  0xffffff921ffeaed0: 0xffffff801ab03473

  0xffffff921ffeaf20: 0xffffff801aaf3be7

  0xffffff921ffeaf50: 0xffffff801a931e3a

  0xffffff921ffeb060: 0xffffff801a9311de

  0xffffff921ffeb100: 0xffffff801a92f4bb

  0xffffff921ffeb170: 0xffffff801ab3159c

  0xffffff921ffeb1c0: 0xffffff801ab36967

  0xffffff921ffeb260: 0xffffff801ab14459

  0xffffff921ffeb980: 0xffffff801a92723e

  0xffffff921ffeba10: 0xffffff801ab849db

  0xffffff921ffebf60: 0xffffff801ac286a1

  0xffffff921ffebfb0: 0xffffff801a7ecc66

  The process corresponding to the current thread BSD name: mds_stores

  Mac OS version:

  15F34

  Kernel version:

  15.5.0 Darwin kernel version: kills Apr 19 18:36:36 PDT 2016; root:XNU-3248.50.21~8/RELEASE_X86_64

  Kernel UUID: 7E7B0822-D2DE-3B39-A7A5-77B40A668BC6

  Slide kernel:

  0x000000001a400000

  Text of core base: 0xffffff801a600000

  Text __HIB base: 0xffffff801a500000

  Name of system model: MacPro6, 1 (Mac-F60DEB81FF30ACF6)

  Availability of the system in nanoseconds: 40936714424

  last load kext to 4709008356: com.nvidia.CUDA 1.1.0 (addr 0xffffff7f9c684000 size 12288)

  kexts responsible:

  com.nvidia.CUDA 1.1.0

  com.paceap.kext.pacesupport.snowleopard 5.9

  com Apple.filesystems.autofs 3.0

  com.apple.driver.AudioAUUC 1.70

  com.apple.driver.AGPM 110.22.0

  com.apple.driver.X86PlatformShim 1.0.0

  com.apple.driver.ApplePlatformEnabler 2.6.0d0

  com.apple.driver.AppleOSXWatchdog 1

  3.12.7 com.apple.driver.AppleGraphicsDevicePolicy

  com Apple.Driver.pmtelemetry 1

  com.apple.driver.AppleHDAHardwareConfigDriver 274,9

  com.apple.driver.AppleUpstreamUserClient 3.6.1

  com.apple.driver.AppleMCCSControl 1.2.13

  com.apple.iokit.IOUserEthernet 1.0.1

  com.apple.driver.AppleHDA 274,9

  com.apple.kext.AMDFramebuffer 1.4.2

  com.apple.iokit.IOBluetoothSerialManager 4.4.5f3

  com.apple.Dont_Steal_Mac_OS_X 7.0.0

  com.apple.AMDRadeonX4000 1.4.2

  com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

  com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.5f3

  com.apple.driver.AppleHV 1

  com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

  com.apple.driver.AppleLPC 3.1

  com.apple.driver.AppleThunderboltIP 3.0.8

  com.apple.kext.AMD7000Controller 1.4.2

  3.12.8 com.apple.driver.AppleMGPUPowerControl

  com.apple.driver.AppleIntelMCEReporter 107

  com.apple.driver.AppleFIVRDriver 4.1.0

  com.apple.iokit.SCSITaskUserClient 3.7.7

  com.apple.iokit.IOBluetoothUSBDFU 4.4.5f3

  com.apple.driver.AppleFireWireStorage 3.7.1

  com.apple.driver.initioFWBridge 3.7.1

  com.apple.driver.IOFireWireSerialBusProtocolSansPhysicalUnit 3.7.1

  com.apple.driver.LSI_FW_500 3.7.1

  com.apple.driver.Oxford_Semi 3.7.1

  com.apple.driver.StorageLynx 3.7.1

  com.apple.driver.AppleFileSystemDriver 3.0.1

  com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

  com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

  com.apple.BootCache 38

  com.apple.driver.AppleFWOHCI 5.5.4

  2.8.5 com.apple.iokit.IOAHCIBlockStorage

  com.apple.iokit.AppleBCM5701Ethernet 10.2.0

  com.apple.driver.AirPort.Brcm4360 1040.1.1a6

  com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1

  com.apple.driver.AppleAHCIPort 3.1.8

  com.apple.driver.AppleACPIEC 4.0

  com.apple.driver.AppleACPIButtons 4.0

  com.apple.driver.AppleRTC 2.0

  com.apple.driver.AppleHPET 1.8

  com.apple.driver.AppleSMBIOS 2.1

  com.apple.driver.AppleAPIC 1.7

  com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

  com Apple.NKE.applicationfirewall 163

  com Apple.Security.Quarantine 3

  com.apple.security.TMSafetyNet 8

  com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

  com Apple.kext.Triggers 1.0

  com.apple.driver.AppleSMBusController 1.0.14d1

  com.apple.driver.DspFuncLib 274,9

  com.apple.kext.OSvKernDSPLib 525

  com.apple.iokit.IOSurface 108.2.1

  com.apple.iokit.IOSerialFamily 11

  com.apple.iokit.IOAcceleratorFamily2 205,10

  com.apple.driver.CoreCaptureResponder 1

  com.apple.driver.IOPlatformPluginLegacy 1.0.0

  com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.5f3

  com.apple.iokit.IOBluetoothFamily 4.4.5f3

  com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

  com.apple.driver.AppleHDAController 274,9

  com.apple.iokit.IOHDAFamily 274,9

  com.apple.iokit.IOAudioFamily 204.4

  com.apple.vecLib.kext 1.2.0

  com.apple.driver.AppleSMBusPCI 1.0.14d1

  com.apple.kext.AMDSupport 1.4.2

  3.12.8 com.apple.AppleGraphicsDeviceControl

  3.12.8 com.apple.driver.AppleGraphicsControl

  com.apple.driver.AppleBacklightExpert 1.1.0

  com.apple.iokit.IONDRVSupport 2.4.1

  com.apple.iokit.IOGraphicsFamily 2.4.1

  com.apple.driver.X86PlatformPlugin 1.0.0

  com.apple.driver.AppleSMC 3.1.9

  com.apple.driver.IOPlatformPluginFamily 6.0.0d7

  com.apple.iokit.IOFireWireIP 2.2.6

  com.apple.driver.AppleThunderboltEDMSink 4.1.1

  com.apple.driver.AppleThunderboltDPOutAdapter 4.1.3

  com.apple.driver.AppleHIDKeyboard 181

  com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.7

  com.apple.driver.usb.IOUSBHostHIDDevice 1.0.1

  com Apple.Driver.USB.cdc 5.0.0

  com.Apple.Driver.USB.Networking 5.0.0

  com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1

  com.apple.iokit.IOFireWireSerialBusProtocolTransport 2.5.1

  com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

  com.apple.iokit.IOFireWireSBP2 4.2.7

  com.apple.driver.AppleThunderboltPCIUpAdapter 2.0.2

  com.apple.driver.usb.AppleUSBHub 1.0.1

  com.apple.driver.AppleThunderboltDPInAdapter 4.1.3

  com.apple.driver.AppleThunderboltDPAdapterFamily 4.1.3

  com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

  4.6.1 com.apple.iokit.IOFireWireFamily

  com.apple.driver.AppleXsanScheme 3

  com.apple.driver.AppleThunderboltNHI 4.0.4

  com.apple.iokit.IOThunderboltFamily 6.0.2

  com.apple.driver.usb.AppleUSBXHCIPCI 1.0.1

  com.apple.driver.usb.AppleUSBXHCI 1.0.1

  com.apple.driver.AppleUSBMergeNub 900.4.1

  com.apple.iokit.IOEthernetAVBController 1.0.3b3

  com.apple.iokit.IO80211Family 1110.26

  com.apple.driver.mDNSOffloadUserClient 1.0.1b8

  com.apple.iokit.IONetworkingFamily 3.2

  com Apple.Driver.corecapture 1.0.4

  com.apple.driver.usb.AppleUSBEHCI 1.0.1

  com.apple.iokit.IOAHCIFamily 2.8.1

  com.apple.iokit.IOUSBFamily 900.4.1

  com.apple.iokit.IOUSBHostFamily 1.0.1

  com.apple.driver.AppleUSBHostMergeProperties 1.0.1

  com.apple.driver.AppleEFINVRAM 2.0

  com.apple.iokit.IOSMBusFamily 1.1

  com.apple.iokit.IOHIDFamily 2.0.0

  com.apple.driver.AppleEFIRuntime 2.0

  com Apple.Security.sandbox 300.0

  com.apple.kext.AppleMatch 1.0.0d1

  com.apple.driver.AppleKeyStore 2

  com.apple.driver.AppleMobileFileIntegrity 1.0.5

  com.apple.driver.AppleCredentialManager 1.0

  com.apple.driver.DiskImages 417,4

  com.apple.iokit.IOStorageFamily 2.1

  com.apple.iokit.IOReportFamily 31

  com.apple.driver.AppleFDEKeyStore 28.30

  com.apple.driver.AppleACPIPlatform 4.0

  com.apple.iokit.IOPCIFamily 2.9

  com.apple.iokit.IOACPIFamily 1.4

  com Apple.KEC.pthread 1

  com Apple.KEC.corecrypto 1.0

  com.apple.kec.Libm 1

  Hello

  com.paceap.kext.pacesupport.master [no charge] (5.9 - 10.6 SDK - 2016-06-25) [Support]

  /System/Library/Extensions/PACESupportFamily.kext/contents/plugins

  com.paceap.kext.pacesupport.Leopard [no charge] (5.9 - 10.4 SDK - 2012-07-11) [Support]

  [no charge] com.paceap.kext.pacesupport.Panther (5.9 - SDK 10.-1-2012-07-11) [Support]

  com.paceap.kext.pacesupport.snowleopard [no charge] (5.9 - 10.6 SDK - 2012-07-11) [Support]

  com.paceap.kext.pacesupport.Tiger [no charge] (5.9 - 10.4 SDK - 2012-07-11) [Support]

  Same here > kernel Panics extensions - part 3 - Uninstall...

• MacBook Pro doesn't start after recent iTunes update

  I use the latest model of MacBook Pro with the Retina display, bought in August in an Apple Store. After download and install latest iTunes update that App Store the computer asked me to restart to complete the procedure. After it restarted the Apple logo appeared and also the br of progress indicating the time remaining. When it finished now it is stuck on the apple logo screen and will not continue.

  Can someone provide me a procedure step by step to solve the problem? I do not have backup storage so the method with less risk of losing information will be highly appreciated. Thank you

  I tried to start the safe mode, recovery mode, but they no longer work. Is there another way to enter recovery mode except by pressing command + r?

• El Capitan: macbook pro encryption self started after the update to iTunes on 11/12/16.  After restarting the computer open to grey screen asking if I wanted to use ICloud password or logon password updated.  I don't want / need for encryption I do?

  After update iTunes on 11/12/16 my computer restarted "grey screen" and required a password for encryption.  He encrypted then my MacBook Pro (10.11.2) in addition, the iTunes update has 'lost' My Playlists, and 90% of my purchases.  Apple Care level 2 could not find them!  They appear in my account, but not in my iTunes.

  1 can I fully encrypted computer?  Otherwise how can I UN-encrypt?

  2. How can I get my old, entirely organized iTunes back?

  Thank you

  File Vault encryption is a security feature. Olny you know if you want or need it. I don't use it.

  To remove the see of

  Use FileVault to encrypt the boot on your Mac - Apple Support disk

  You can re-download most of iTunes purchases by:

  Download after purchase from the App Store and iTunes Store iBookstore

  It appears that there is a problem. This happens a few times. If you have a backup yo can restore from the backup

• My Macbook Pro does'nt connect after update to 10.11.6

  Hi all.

  After update from my Macbook Pro to 10.11.6 he starts, but after entering my password, then pressing enter shows the loading animation and it is.  I let him go lastnight believe he worked at something after the update, but this morning, nothing...

  An advise, please.

  Kind regards

  Fabio

  Please take each of these steps that you have not already tried it. Some of them are not applicable to your model or your situation. Stop when the problem is resolved.

  To restart a computer is not responding, press and hold the power button for a few seconds until the unit turns off, then release, wait a few seconds and press again briefly.

  Step 1

  The first step to respond to a startup failure is to secure data. If you want to keep the contents of the boot drive and you have not already at least a current backup, you should try to back up now, before we do anything else. It may or may not be possible. If you don't care the data changed since the last backup, you can skip this step.

  There are several ways to back up a Mac that is unable to boot. You need an external hard drive to store backup data.

  a. starting the partition recovery or an hour Local Machine backup volume (button option key at startup). When the OS X Utilities appears, launch disk utility and follow the instructions in this article to support. You'll be 'restoration' the boot on the backup volume volume.

  If you use 2 FileVault, you must first unlock the boot volume. Select its icon ("Macintosh HD", unless you have given it a different name.) It will be nested under another icon of the disc. Select open in the file menu. When you are prompted, enter your login password.

  (b) If step 1 fails due to disk errors, and no other Mac is available, then you may be able to save some of your files by copying them in the Finder. If you already have an external hard drive with OS X installed, the start of it. Otherwise, if you have access to the Internet, follow the instructions on this page to prepare the external hard drive and install OS X on it. You will use the installation program of recovery, rather than download it from the App Store.

  c. If you have access to a Mac, and it work and have both the non-working Mac FireWire ports or stroke, start the Mac non-working in target disk mode. Work Mac to copy the data to another drive. This technique will not work with USB, Ethernet, Wi - Fi or Bluetooth.

  d. If the internal drive of the non-working Mac is replaceable by the user, remove it and climb into a docking station that is pregnant or an external drive. Use another Mac to copy the data.

  Step 2

  If you have booted from an external drive, make sure that the internal boot volume is selected in the pane of the system preferences Startup disk.

  Start in safe mode. Note: If FileVault is enabled in OS X 10.9 or an earlier version, or if a firmware password is defined, or if the boot volume is a software RAID, you can not do this. If you do not see the words "Safe Boot" in the start screen, you did not start in safe mode. Ask for additional instructions.

  Safe mode is much slower to boot and run as normal, and some things don't work at all, including the networks without wire on some Macs.

  The login screen is displayed even if you normally connect automatically. You must know the password for the connection to connect. If you have forgotten the password, you will have to reset it before you begin.

  If the startup progress bar gets stuck for more than a few minutes, or the system stops automatically when the progress bar appears, the boot volume is corrupted and the player is probably defective. In this case, go to step 9. If you have another problem with the player, replace it immediately.

  If you can start and log in in safe mode, empty the trash and then open the window of info on the boot volume ("Macintosh HD", unless you have given it a different name.) Make sure you have at least 9 GB of space available, as shown in the window. If you do not, copy as many files as necessary on another volume (not another folder on the same volume) and delete the originals. Deletion is not complete until you empty the trash again. This, until the space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)

  If the boot process hangs again, the problem is probably caused by third-party software you have installed. Ask for additional instructions.

  Step 3

  If the startup process stops at a gray screen together with a mobile cursor, then the logon dialog box may be active but not visible because of a bug. You may be able to connect by using the arrow keys or the cursor to select the password field and type your password as usual.

  Step 4

  Case of failure of step 3, the boot volume can be complete. If you saw previously implemented guard space drive is low, it is certainly the case. You might be able to start in safe mode , even if you cannot boot normally. Otherwise, boot from an external hard drive, or well technology for step 1b, 1 c or 1 d allows to mount the internal drive and delete some files. According to the documentation from Apple, you need at least 9 GB of free space on the boot (as shown in the Infolog) for normal operation volume.

  Step 5

  If a Mac desktop (without the built-in keyboard) crashes on a gray screen together with a mobile cursor, the keyboard may not be recognized. Hold down the button on the side of a wireless Apple keyboard to make it discoverable. If need be, replace or recharge the batteries. If you use a USB keyboard connected to a hub, connect it to a built-in port.

  Step 6

  Sometimes, a startup failure can be solved by resetting the NVRAM.

  Step 7

  If there is an integrated optical drive, a disk may be stuck in there. Follow these instructions to remove it.

  Step 8

  Press and hold the power button until the unit turns off. Disconnect all devices wired except those needed to start and remove all aftermarket expansion cards. Use another keyboard and/or mouse, if these devices are wired. If you can start now, one of the devices that you disconnected, or a combination of both, the origin of the problem. Discover that it is a process of elimination.

  Step 9

  Launch the utility disk in recovery mode (see step 1). Select the boot volume, and then run the repair disk. If problems are found, repeat until that clear. If disk utility reports that the volume is not repairable, the drive is defective and must be replaced. You can choose to tolerate such malfunction in the reader's life. In this case, delete the volume and restore it from a backup. If the same thing happens again, replace the drive immediately.

  It is one of the rare situations where you must also run repair permissions, ignoring the erroneous warnings, that it can produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.

  Step 10

  If the boot device is an aftermarket SSD, it may have an update and/or a forced "garbage collection". Instructions how to do this with a Crucial SSD of brand have been posted here. Some of these instructions may apply to other brands of SSDS, but you should check with the technical support of the provider.

  Step 11

  Reinstall the OS. If the Mac has upgraded an earlier version of Mac OS X, you need the Apple ID and password used to upgrade.

  Step 12

  Do as in step 11, but this time clear the disk utility boot volume before installing. The system should automatically restart in The Migration Wizard. Follow the prompts to transfer data from one Time Machine or another backup.

  Step 13

  This step applies only to models that have a battery logic-board ("PRAM"): all of the Mac Pro, MacBook with a removable main battery and a few others (models not updated). A flat battery logic-board may cause a boot failure. In general the failure will be preceded by the loss of the system and boot disk clock settings. Refer to the user manual for replacement instructions. You may need to take the machine to a provider of services to have to replace the battery.

  Step 14

  If you get this far, you probably deal a hardware failure. An appointment of 'Genius' to an Apple Store, or select another authorized service provider.

• Mid-2015 MacBook Pro won't start every 2 weeks, need to restore from a backup.

  Hello all, big problem, Apple says that it is not material (although I'm not sure), but if not, then there must be some sort of conflict between my installed software and the new model of MacBook Pro mid-2015. Help!

  The problem here is that I've been running EXACTLY the same configuration on a MacBook Pro 2012 since, well, 2012, without any problem. But when I received the new machine in December, I migrated everything on (using Migration Assistant), I have installed a Bootcamp partition, migrated my old installation of Windows on the use of WinClone, and everything was fine for about 2 weeks. This is the same process as I did when I upgraded the machine from 2009 to 2012 also machine well.

  Suddenly one day, starting from Windows to Mac OS, I watched the progress bar filling, then stop, then the screen went black. No sound, nothing. I hit the power button and the same sequence. Progress bar about 3/4 of way filled, on the screen then black, then the unit turns off.

  I called Apple, went to two Apple stores, and we all tried to run disk utility to fix the problem. But every time I find myself with a message "Invalid node structure. The volume could not be completely checked. File system check exit code 8. Updated scores of start-up of the volume as required. File system check or repair a failure. Operation failed... "The topic on this bed,"first aid process has failed, if possible, back up the data on this volume. »

  The idea of first re - install the operating system didn't work... apparently there was a problem with the volume at this point so he would not restore. The next option was to completely erase the partition and then restore the backup. That worked, but then the entire process repeated two weeks later.

  I have been through this process 7 ~ 8 times since December! It seems to happen every two weeks and no one can tell me why it's happening on this new machine, but I have NOT had the problem on the old machine running the same configuration.

  
  

  Apple said it might have something to do with execution Tuxera NTFS on Mac (if I can share documents across side Windows). I have not removed... Tuxera two restorations there is no change.

  I also use Paragon HFS + for Windows, because most of my material is actually stored on the Mac side. I have NOT yet removed this (current running Windows 10) because I have NO idea why or how something running on the Windows side could affect the operating system volume on the side of Mac... especially when everything I do is opening and closing things as Word documents.

  I have log files and screenshots (I write below a few... but there are many others). Apple says "it is not a hardware problem" so they won't have to help understand if it's just software. I beg the community to help!

  Here's what I new material:

  MacBook Pro (retina, 15 inch, mid-2015)

  Intel Core i7 2.8 GHz

  16 GB 1600 MHz DDR3

  AMD Radeon R9 M370X 2048 MB

  This graphics card is the NEW one, first, that I do business with AMD

  My OLD machine is:

  MacBook Pro (15-inch, mid-2012)

  Intel Core i7 2.7 GHz

  16 GB 1600 MHz DDR3

  Intel HD Graphics 4000 1536 MB

  Any help or ideas are appreciated!

  

  Suddenly one day, starting from Windows to Mac OS, I watched the progress bar filling, then stop, then the screen went black. No sound, nothing. I hit the power button and the same sequence. Progress bar about 3/4 of way filled, on the screen then black, then the unit turns off.

  This occurs when the drive Boot CAN get the initial Blob of the software off the drive with the boot loader, but when he tried to mount the disk with the file system, it can not be mounted. It runs a single past of [essential] disk first aid. If the drive cannot be mounted, your Mac can not do something useful, he died.

  If the problem could not be fixed quickly, you should have been advised to REPLACE this hard drive.

  This is what you need to do now and stop wasting your time. A new drive costs less than $ 100 and will solve your problems.

• MacBook Pro won't start not

  Hello

  I have a MacBook Pro that, if I'm not mistaken that I bought in 2009. So, last week I had several open files and I was typing on a Word document, I typed whenever he got more lag. Then my laptop just turned off automatically and I received a message (I don't remember very well what it read) and after that I tried to turn it on again, the start bar just loaded up to half, he stayed there for 10 minutes, then the computer is turned off again. Help, I can't lose the files that I had in this computer. What should I do?

  Thanks for your help.

  Try SMC and NVRAM resets:

  https://support.Apple.com/en-us/HT201295

  https://support.Apple.com/en-us/HT204063

  Try a safe boot:

  https://support.Apple.com/en-us/HT201262

  If no success, using the original installation CD and see if you can start the MBP.

  If you can, after the language selection, the display should have a top menu bar.  Click on UTILITIES and select and run disk utility > first aid.  If the disk cannot be repaired, a new will be necessary.

  If you cannot start with the installation diskettes, make an appointment at an Apple store genius bar for a FREE evaluation.

  Ciao.

• MacBook Pro won't start - runs in a loop

  Hi guys,.

  After a few days trying to figure this painful problem, I am at the end of my home and hope someone can help.

  I have a 2011 MacBook Pro, which has recently started having problems to start. During a game session (SIMMS), he all of a sudden to stop and refused to restart, and since then I have been unable to use it at all. The MBP has a new installation of El Capitan on it, but it has been working well for the past two weeks since the installation.

  I tried the safe mode, mode of recovery etc, but it would not boot in any of these either. Finally, I put it target mode and reloaded El Capitan of another 'companion' MacBook Pro. This process went smoothly.

  After loading it, I started from the MacBook to make sure that the operating system works OK, and it was 'companion '!

  I restarted the "Companion" MBP and ejected the defective MBP and tried to restart it normally. No go, would not even boot even with the new OS.

  I tried a number of things so he can begin as a result of this new facility, but all that happens is that he'll do the Apple Logo, try to start, stop, and then go around in circles.

  Finally you will stop on the gray screen and the fans will start and keep running.

  I'm at the end of my knowledge, so any advice would be welcome!

  Thank you

  Have you tried SMC and NVRAM resets?

• MacBook Pro does not start after asking password

  My MacBook Pro asks for my password, then the password window disappears as if it is going to start but then it asks for the password again. This happens again and again and again

  It will start in safe mode (hold the SHIFT key down as soon as you hear the ringing tone)

• MacBook Pro mid 2012 slow after update to MacOS 10.11.3

  MacBook pro is slow when you use Mail, calendar and other native applications and daily tasks. Still need to many clicks to do anything, switching active windows or even applications of freezing and crashing.  Processors don't show any remarkable load, so seems like there is something that the software is waiting for the network or network somewhere wireless also disappear sometimes. Then takes a while to come back or I have wifi turned off-lit to make it work again.

  < personal information under the direction of the host >

  You have software installed "anti-virus"? It is the most common cause for this.

  A report of etrecheck would be a good starting point: http://www.etresoft.com/etrecheck

• my macbook pro is running slowly after update to El captain

  Hello world

  My macbook pro short slow after upgrading to El captain that can than I do to solve this problem?

  Hello. Run the check being and post here results:

  With the help of EtreCheck

• MacBook Pro a mess (maybe after upgrading to El Capitan)

  I need help in desperate mode.  I tried to implement everything that I know and I now return to the pros.    I have a Macbook Pro mid-2012.  The computer is still very well without any problems.   After about 3-4 weeks after the upgrade to El Capitan, I started to have problems.   I'm not sure it's related, so I don't want to blame the new version, but wanted to mention.

  The problems began with suddenly a series of cruise lines up and down my screen in vertical columns.  The computer would then closed and when I started it again, I would get three consecutive beeps.   After searching for the reason for this, I found that it was probably a RAM problem and saw messages recommending to turn on and remove two cards of memory RAM.  This would help the lines/beeps etc, but the beach ball began to spin all the time.     I ran a scan of material and everything checked, including the RAM.   I feel upgrade my RAM anyway (we stock 4 GB), so I buy new RAM and upgraded to 16 GB.   Unfortunately, this did not help to remove the rotation beach ball.   It runs the same as before, but the delay/spin isn't as long as it was before.  Seems that upgrading RAM reduces the time of "spin".

  Since the upgrade, I reset memory PRAM/NVRAM, recommended in this forum.  Did not help.   Then I booted the computer in Mode safe and also reset the SMC.   None worked.

  Then, I started in HD recovery using the command-R and repair the hard disk and permissions using first aid option in disk utility.   Nothing has changed.  Always turn the ball and beach closing my apps suddenly by itself.  The machine will be restart as suddenly about once a day for a reason any.

  The amazing thing is that the beach ball turns constantly and at the same time my activity monitor says I have 90% of free CPU while my reel becomes crazy.

  The next step on the list that I saw on the forum is to reinstall OS X.   I did not this again, because my Time Machine hangs and won't give me a recent backup.   I'm religious about backing up (about every 2-3 weeks) and my normal backups take about 30 minutes (usually leave it all night in stopping in bed).  Since this problem started, the Time Machine backup "preparedness Back Up Now" never of leaves.  I left overnight (8 hours) and still stuck in the preparation of backup mode.   I've even left for a total of 24 hours and nothing.   The only new information I have to save may not be more than 3 or 4 GBs top (just emails and documents (photos and videos are on the external drive), while certainly something will not.)

  Now that you have the story, what should I do?    I don't want to reinstall an OS X cool unless I have to, without a current backup.   This isn't the end of the world, but I would like to have the e-mails and documents that have been organized and classified over the last 2 months.

  I've seen enough of few people displaying the results of EtreCheck and to be lucky with this, so here are the results.  I don't know how to properly analyze it, but looks like I need a larger Time Machine backup drive.

  (Its the same thing I've always used, so don't know why all of a sudden it stopped allowing me to save.)   I remember that Time Machine used to give an opinion on the size of the disk when it is too small, and I got that.)

  Thank you all in advance for the help!

  EtreCheck version: 2.6.6 (226)

  Report generated on 07/12/15 16:32

  Duration 24:48

  Download EtreCheck from http://etrecheck.com

  Click on the links [click for support] to help with non-Apple products.

  Click on the links [click for more details] for more information on this line.

  Hardware Information: (Does that mean?)

  MacBook Pro (13-inch, mid-2012)

  [Click for plug technique]

  [Click here for the User Guide]

  MacBook Pro - model: MacBookPro9, 2

  1 2.5 GHz Intel Core i5 CPU: 2 strands

  16 GB of RAM expandable

  [Click here for upgrade instructions]

  BANK 0/DIMM0

  OK 8 GB DDR3 1600 MHz

  BANK 1/DIMM0

  OK 8 GB DDR3 1600 MHz

  Bluetooth: Good - transfer/Airdrop2 taken in charge

  Wireless: en1: 802.11 a/b/g/n

  Battery: Health = Normal - Cycle count = 694 - SN = W024553WJD3BB

  Video information: (Does that mean?)

  Graphics Intel HD 4000

  Color LCD 1280 x 800

  Software: (Does that mean?)

  OS X El Capitan 10.11.1 (B 15, 42) - since startup time: less than an hour

  Disc information: (Does that mean?)

  Disk0 APPLE drive HARD TOSHIBA MK5065GSXF: (500,11 GB) (rotation)

  EFI (disk0s1) : 210 MB

  HD (disk0s3) [recovery] recovery: 650 MB

  Macintosh HD (disk 1) /: 498,88 (Go 72,88 free)

  Storage of carrots: disk0s2 499.25 GB Online

  HL-DT-ST DVD - RW GS31N)

  USB information: (Does that mean?)

  Apple Inc. FaceTime HD camera (built-in)

  Apple Inc. Apple keyboard / Trackpad

  Computer, Inc. Apple IR receiver.

  Apple Inc. BRCM20702 hub.

  Apple Inc. Bluetooth USB host controller.

  Lightning information: (Does that mean?)

  Apple Inc. Thunderbolt_bus.

  Guardian: (Does that mean?)

  Mac App Store and identified developers

  Kernel extensions: (Does that mean?)

  / Library/Application Support/LogMeIn/drivers

  [loading] com.logmein.driver.LogMeInSoundDriver (4.1.48f61) [click for support]

  / System/Library/Extensions

  [loading] com.dvdfab.kext.fabio (1) [click for support]

  [no charge] com.Nike.sportwatch (1.0.0) [click for support]

  Launch officers: (Does that mean?)

  [loading] com.adobe.AAM.Updater - 1.0.plist [click to support]

  [failure] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a... plist [click for support]

  [loading] com.google.keystone.agent.plist [click to support]

  [failure] com.logmein.LMILaunchAgentFixer.plist [click for support] [click for more information]

  [loading] com.logmein.logmeingui.plist [click to support]

  [loading] com.logmein.logmeinguiagent.plist [click to support]

  [loading] com.logmein.logmeinguiagentatlogin.plist [click to support]

  [operation] com.nike.nikeplusconnect.plist [click to support]

  [loading] com.oracle.java.Java - Updater.plist [click to support]

  [loading] com.teamviewer.teamviewer.plist [click to support]

  [loading] com.teamviewer.teamviewer_desktop.plist [click to support]

  [operation] org.chromium.chromoting.plist [click to support]

  [loading] org.macosforge.xquartz.startx.plist [click to support]

  Launch demons: (Does that mean?)

  [loading] com.adobe.ARMDC.Communicator.plist [click to support]

  [loading] com.adobe.ARMDC.SMJobBlessHelper.plist [click to support]

  [loading] com.adobe.fpsaud.plist [click to support]

  [loading] com.google.keystone.daemon.plist [click to support]

  [loading] com.logmein.logmeinserver.plist [click to support]

  [loading] com.logmein.raupdate.plist [click to support]

  [loading] com.oracle.java.Helper - Tool.plist [click to support]

  [loading] com.teamviewer.Helper.plist [click to support]

  [loading] com.teamviewer.teamviewer_service.plist [click to support]

  [loading] org.macosforge.xquartz.privileged_startx.plist [click to support]

  User launch officers: (Does that mean?)

  [loading] com.adobe.AAM.Updater - 1.0.plist [click to support]

  [operation] com.nchsoftware.expressinvoice.agent.plist [click to support]

  Items in user login: (Does that mean?)

  iTunesHelper Application (/ Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

  Dropbox application (/ Applications/Dropbox.app)

  Other applications: (Does that mean?)

  [performance]    QA2G25RMZ4.com.Wunderkinder.Wunderlist - helper

  [ongoing] com.Apple.XPC.launchd.oneshot.0x10000002.EtreCheck

  [ongoing] com.getdropbox.dropbox.101472

  [ongoing] com.HP.devicemonitor

  Plug-ins Internet: (Does that mean?)

  o1dbrowserplugin: Version: 5.41.0.0 - SDK 10.8 [click for support]

  Default browser: Version: 601 - SDK 10.11

  SlingPlayer: Version: Unknown - 10.8 [click for support] SDK

  AdobePDFViewerNPAPI: Version: 15.009.20077 - SDK 10.8 [click for support]

  FlashPlayer - 10.6: Version: 19.0.0.245 - 10.6 SDK [click for support]

  LogMeIn: Version: 1.0.935 - SDK 10.7 [click for support]

  Silverlight: Version: 5.1.30514.0 - 10.6 SDK [click for support]

  QuickTime Plugin: Version: 7.7.3

  Flash Player: Version: 19.0.0.245 - 10.6 SDK [click for support]

  LogMeInSafari32: Version: 1.0.935 - SDK 10.7 [click for support]

  googletalkbrowserplugin: Version: 5.41.0.0 - SDK 10.8 [click for support]

  AdobePDFViewer: Version: 15.009.20077 - SDK 10.8 [click for support]

  JavaAppletPlugin: Version: update of Java 7 55 check version

  User Plug-ins internet: (Does that mean?)

  CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 [click to support]

  WebEx64: Version: 1.0 - 10.6 SDK [click for support]

  Safari extensions: (Does that mean?)

  iTube Studio

  3rd party preference panes: (Does that mean?)

  remoting_host_prefpane [click to support]

  Flash Player [click for support]

  GoPro [click for support]

  Java [click for support]

  Time Machine: (Does that mean?)

  Skip system files: No.

  Mobile backups: WE

  Automatic backup: YES

  Volumes to back up:

  Macintosh HD: Disc size: 498,88 GB disc used: 426,00 GB

  Destinations:

  Sergio Backup [Local]

  Total size: 1.00 TB

  Total number of backups: 1

  An older backup: 18/09/15 01:07

  Last backup: 18/09/15 01:07

  Backup disk size: too small

  Backup size 1.00 TB< (disk="" used="" 426.00="" gb="" x="">

  Top of page process CPU: (Does that mean?)

  6% com.apple.WebKit.WebContent (3)

  3% safari

  mdworker 2%

  kernel_task 2%

  2% WindowServer

  Top of page process of memory: (Does that mean?)

  932 MB kernel_task

  459 MB com.apple.WebKit.WebContent (3)

  Safari of 197 MB

  Mail 197 MB

  WindowServer 131 MB

  Virtual memory information: (Does that mean?)

  9.07 GB of free RAM

  6,92 used GB RAM (1.96 GB being cached)

  Used Swap 0 B

  Diagnostic information: (Does that mean?)

  7 December 2015, 15:49:04 self-test - spent

  7 December 2015, 14:44:47 ~/Library/Logs/DiagnosticReports/Mail_2015-12-07-144447_[redacted].crash

  7 December 2015, 13:45:16 ~/Library/Logs/DiagnosticReports/mapspushd_2015-12-07-134516_[redacted].crash

  7 December 2015, 11:37:46 ~/Library/Logs/DiagnosticReports/Mail_2015-12-07-113746_[redacted].crash

  November 25, 2015, 11:00:03 /Library/Logs/DiagnosticReports/Kernel_2015-11-25-110003_[redacted].panic [click for more information]

  November 24, 2015, 09:11:42 /Library/Logs/DiagnosticReports/Kernel_2015-11-24-091142_[redacted].panic [click for more information]

  November 24, 2015, 09:00:49 /Library/Logs/DiagnosticReports/Kernel_2015-11-24-090049_[redacted].panic [click for more information]

  November 19, 2015, 23:09:12 /Library/Logs/DiagnosticReports/Kernel_2015-11-19-230912_[redacted].panic [click for more information]

  November 15, 2015, 10:28:20 /Library/Logs/DiagnosticReports/Kernel_2015-11-15-102820_[redacted].panic [click for more information]

  November 15, 2015, 10:00:01 /Library/Logs/DiagnosticReports/Kernel_2015-11-15-100001_[redacted].panic [click for more information]

  Please read this message before doing anything.

  This procedure is a diagnostic test. It is unlikely to solve your problem. Don't be disappointed when you find that nothing has changed after you complete it.

  The test is intended to determine if the problem is caused by a third-party software that loads automatically at startup or logon, by a device, by a police conflict or corruption of system files or some system caches.

  Disconnect all devices wired except those required to test and remove all the expansion cards from secondary market, as appropriate. Start in safe mode and log on to the account of the problem.

  Note: If FileVault is enabled in OS X 10.9 or an earlier version, or if a firmware password is defined, or if the boot volume is a software RAID, you can not do this. Ask for additional instructions.

  Safe mode is much slower to boot and run as normal, with limited graphics performance, and some things work at all, including an audio output and a Wi - Fi connection on some models. The next normal boot can also be a bit slow.

  The login screen is displayed even if you usually connect automatically. You need your password to log on. If you have forgotten the password, you will have to reset it before you begin.

  Test in safe mode. It will be slow, but there should be no beachballing. Same problem?

  After testing, restart as usual (not in safe mode) and make sure you always have the problem. View the results of the test.

• MacBook Pro(MID-2012):Issues after Upgrading to El Capitan

  I use Macbook Pro mid-2012 version. After upgrading to El Capitan, I am facing a lot of questions.

  (1) the DMG files does not open. said hdiutil attach has busy resource failed.

  (2) my Macbook Pro will not stop completely.

  (3) my systems updates install completely. They hit each other between installation (had to force quit)

  ' (4) ' about this Mac ' gets hit when trying to access storage tab.

  Any suggestions?

  Your MBP was working perfectly before the update?