Unexplained failure

Similar Questions

• Problem with internet connection 64-bit Windows Vista, unexplained intermittent failure.

  original title: PROBLEM CONNECTING WINDOWS VISTA 64 BIT INTERNET - UNEXPLAINED INTERMITTENT OUTAGES

  On HP a6542p PC with factory installed Windows Vista (64-bit), Vista operating system program does not take account of Internet broadband, which, in reality, a good connection.  for the first 2 years of operation, the PC internet connection worked well, but a year ago, he started this OFF intermittent / WE internet problem.  SOMETIMES, I can manage to temporarily restore the internet after running randomly across the machine diagnostic & installation programs available to the home screen, OR SOMETIMES also after running REGEDIT in the start (search) bar and watching the TCP/IP settings (do not change them, just watch), but the internet connection drops again after the machine is idle for a few minutes.  I get very tired of the exercise Dog & Pony to run through the different random procedures & hoping that something will work.  I tried the fix from Microsoft using a flashdrive D/L from the Windows site to my XP machine and tried a few manual corrections proposed on various websites, but nothing seems to work.  I have no HP manufacturer disk to reload the Vista operating system.  The connection is good, the cable is good, but Vista gives me contradictory information about the diagnosis, such as ERROR 815, and he tells me also a cable is disconnected (not true, the cable is plugged & good & works very well when the Vista connection is restored), while another diagnostic message indicates the internet connection is good, at the same time other messages say is not.   What can I do to fix this problem in Vista?  Personal e-mail is: * address email is removed from the privacy * -I will check that URL of Web site for the possible answer.    Thanks in advance.

  Imrand - Thanks for the tip, I tried it & it didn't work.  However, I found an update of the HP driver for the network card Realtek in my machine, & after d/l this new driver, the problem seems to be fixed.  The Web connection is still good after several cycles of closing & reboot.  I'm not sure, because with this HP Vista PC, I can never be sure of anything, but I think the problem might be due to the rotating system off the NETWORK adapter in sleep mode, & so not put on when waking up.  Diagnostics messages confused and contradictory pages of different screen Windows were of NO use, it looks like the internet connection was good (which it was), while the other would be at the same time say there is no connection due to the disconnection of the cable, while the other at the same time say that the DNS server broadband couldn't recognize my internet query.  Total BS of Vista, which has compounded the problem than he was.  I only am not surprised Microsoft abandoned the Vista operating system so fast, so many other users of Vista have similar internet connection problems.  The user friendly and very stable XP operating system I have on an old PC of Insignia is my favorite.  Microsoft had to quit with it, IMO.

  Thanks for your help, Cimarron

• Print/memory/crash unexplained issues with CC

  We have a company account CC with only 2 people who use it. One of these people has quite a few unexplained questions when using the CC products. Only products CC sometimes print is suspended. All other software can print correctly. (Restarting returns the printing functionality). Sometimes, several processes are instantiated for the exact same CC thread or they process is not ending with the program. The accumulation causes any CC that won't work and failures of the system. More recently and this is a new one, Acrobat causes a blue screen and the minidump. The system that is installed is Windows 7 (64-bit). I also ran chkdisk and memcheck to ensure they were not causing problems. Anyone have any ideas?

  Please contact our support for assistance staff: https://helpx.adobe.com/contact.html

  (be sure to connect to adobe.com with your Adobe ID first)

  Guinot

• I have problems to restart of Yosemite, after power failure during the new backup, and now HD is also blocked.

  I have problems to restart of Yosemite, after power failure during the new backup, and now HD is also blocked.

  I tried the holding of 'command-r' and 'option' to see if the problem can be resolved or try any boot from a boot disk, my old backup, USB function start - but after a slow long process it all just stops.

  There is software on my HD that I don't want to lose by simply reformatting the computer, because I am now in a different country, far from my house, which is another problem of the Apple Store, to reinstall my OS from Yosemite on the www.

  Hey AmnonMikeCohen,

  Thank you for being a part of the communities of Apple Support.

  I understand that your Mac is not start properly after the power went out.  Let's start with resetting the SMC and NVRAM on your Mac and see if he can start from there:

  Reset the management system (SCM) controller on your Mac.

  How to reset the NVRAM on your Mac.

  See you soon.

• Assistance required after you download Sierra - locked in a spiral of failure of the Installation

  Hello - I am a student of the University who made the mistake of thinking I had to upgrade my OS system after seeing some updates new flashy in the Sierra. Long story short, that my computer is locked into a cycle where I restarts and the installation process will begin installation but end abruptly and ask me to reboot again.

  I have exams and papers due and seriously want access to my data again. I don't have a back up of my files. As such, I am looking for a method that will allow me access to my files that I need to be able to read notes, print etc.

  Details: I have an old MBPro by the end of 2011. He was on as the primary OS x Lion. I had updated some time later. More recently, I got El Capitan and it worked very well. I downloaded Sierra in the background as I did work at home and after installing it, it asked me to reboot. This was the point that I was able to come back from. Reboot after installation scenario is as follows:

  -A progress bar comes up saying 34 minutes until completion

  -The progress bar goes to 33 minutes until completion

  -Beginning of fans of my computer acting upward and the bar stops and crashes of progression

  -The installation process says he doesn't have and asks me to restart my computer

  Specifically, I get the message 'Mac OS could not be installed on your computer. File system check or repair a failure. Quit the installer to restart your computer and try again. »

  When I quit the installer of the OS, I am taken to the startup disk option and asked to choose a system to reboot my computer with. I see 'Macintosh HD macOS 10.11.4' but when I click on it and try to restart I get the following error message, "you cannot change the disk on the disk selected. Startup disk could not gather enough information on the selected disk. »

  Things I've tried:

  Internet recovery mode: I went here to do a restore of the Mac OS x comes with my computer (Lion). This attempt fails and the computer tells me I can't downgrade because a more recent OSX is already on my computer...

  Recovery mode: I tried to come back just El Capitan from here. When I try to do the process will take literally one second before I get a notification saying: "an error occurred during the preparation of the installation. Try to rerun this application".

  Disk utility: I tried to do first aid and repair on this menu on the big disk image (since some of them pop up... I'm sure that the big one is my computer and the small setup of Sierra is?). I see that I 115Gigs franco 319Gigs departure. When I click on check and repair, the process takes some time and seems as he goes to halfway through before I get errors in the two. Repair error wonder backup my data.

  -some specific stuff; the journal for the repair of first aid says something like: the Macintosh HD volume could not be completely checked. File system check exit code is 8. Update support partition for the volume as required. File system check or repair a failure. Operation failed... »

  Safe mode: I can't start in safe mode. My computer will load the apple logo, progress on 3/4ths of the way start-up and then crash on its own and not restart.

  Things I have tried:

  Constituting a new boot USB of OS Sierra - I read that in so doing I can substitute the installation process that is going on right now on my computer and start a new... I hope one that works. I was not able to do this again, because I need someone to another macbook to make it and none of my friends won't let me touch their computers after the fiasco that happened on mine... Can I get some feedback on this?

  Backup: I don't have an external hard drive... I'm willing to buy one if necessary, but I don't know how to make a backup in a world where I don't have access to the major functional sections of my computer. Also, if my computer is * session here now, I'm worried that a backup will be essentially a * a backup... is this the work of the computer?

  Other thoughts:

  -my computer was working fine before I tried the upgrade... no complaints on my end, it was a real trooper

  -Maybe the download was corrupted?

  -I learned today that the operating system installation process requires internet connection - maybe that my internet connection is bad?

  -on that note, I want to say I tried a lot of different things. Been in different parts of the campus (different parts of my dorm building, IT support across campus, etc.). My University has also 3 options of WIFI, but each requires a separate verification process. Throughout this process, I have been connected to one of these methods. Switching may help? But, if I can't do the verification step (i.e. open a browser and type in the details of my student specific to actually use the web), I do not think that this will help you a lot. In addition, I am sure that I am already using one of the less frequently used options.

  I want to avoid a permanent possible deletion because there are important things on my computer.

  Any advice? Enjoy it!

  Same problem here on my Mac Mini end of 2012. I couldn't find any fix so far. The machine worked perfectly fine before with El Capitan and had about 50 GB of available disk space. I have use any version beta of Sierra, but officially released one that came yesterday. Really disappointing to see the new system operating software with fundamental questions and no good way to solve it.

  Any help really appreciated.

• There's the iPhone battery chargers 5 that use no electricity.  For use in a power failure.

  There's the iPhone battery chargers 5 that use no electricity.  For use during a power failure.

  Your best bet is an accumulator.  I have one I got on Amazon by EC Tech.  It is a brick, but it will charge my iPhone and the iPad, if the current is cut off.  You just need to load the brick and keep it in an emergency.

• Hardware failure if I open Adobe apps or iTunes

  I'm having a horrible time, sorting by a hardware failure in a 3.5 GHz 6-Core MacPro problem. After that he crashed during his sleep, I am not able to launch Adobe applications or iTunes without another immediate material failure. I trashed every imaginable preference and reinstalled the new software system to no effect. Can someone look at the panic report and make some sense? Thank you...

  Anonymous UUID: C1EFD5AA-D9A3-3AD8-D9AC-86E6088D3498

  Fri Sep 23 08:21:34 2016

  Panic report *.

  panic (cpu 0 0xffffff7f8c09f9ce appellant): "ACPI \"PWRD\ "with zero power failure: < rdar://problem/15746463 > ' @/Library/Caches/com.apple.xbs/Sources/AppleGraphicsC ontrol/AppleGraphicsControl-3.12.8/src/AppleMGPUPowerControl/kext/AMPCPowerManag, .cpp: 511»»»

  Backtrace (CPU 0), frame: return address

  0xffffff93ebcf3db0: 0xffffff80098dab52

  0xffffff93ebcf3e30: 0xffffff7f8c09f9ce

  0xffffff93ebcf3e80: 0xffffff7f8c09eed2

  0xffffff93ebcf3ec0: 0xffffff7f8c09d6b9

  0xffffff93ebcf3f10: 0xffffff7f8c09dc0f

  0xffffff93ebcf3f40: 0xffffff8009eb3111

  0xffffff93ebcf3f80: 0xffffff8009eb330c

  0xffffff93ebcf3fb0: 0xffffff80099c9117

  Extensions of core in backtrace:

  com.apple.driver.AppleMGPUPowerControl (3.12.8) [CB4BA03A-3AA5-34F1-B951-4A2F8352 8E48]@0xffffff7f8c097000-> 0xffffff7f8c0a3fff]

  dependency: com.apple.driver.AppleBacklightExpert (1.1.0) [C49819CE - 729A - 36B 2 - 9AC1 - 744A43DC23 6F]@0xffffff7f8c08f000

  dependency: com.apple.iokit.IOPCIFamily (2.9) [5447B943-A94D-3BD4-A60F-98B24D19CE93] @ 7f8a12c000 0xffffff

  dependency: com.apple.driver.AppleGraphicsControl (3.12.8) [C57F5F56-2229-365F-9765-F24AA4687 584]@0xffffff7f8c094000

  dependency: com.apple.iokit.IOACPIFamily (1.4) [5D7574C3-8E90-3873-BAEB-D979FC215A7D] @0xfffff f7f8a91e000

  dependency: ffff7f8ad65000 @0xff com.apple.iokit.IONDRVSupport (2.4.1) [4EB2843C-C821-3AD0-B333-575FD6ED6FB1]

  dependency: com.apple.iokit.IOGraphicsFamily (2.4.1) [A360453D-2050-3C49-A549-AC0DD5E87917] @0 xffffff7f8a2d1000

  Corresponding to the current thread BSD process name: kernel_task

  Mac OS version:

  15 1004

  Kernel version:

  15.6.0 Darwin kernel version: Mon Aug 29 20:21:34 PDT 2016; root:XNU-3248.60.11~1/RELEASE_X86_64

  Kernel UUID: E349749B-3303-3DDF-959C-B5885A0E1F6E

  Slide kernel: 0 x 0000000009600000

  Text of core base: 0xffffff8009800000

  Text __HIB base: 0xffffff8009700000

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

  Availability of the system in nanoseconds: 337233042670

  last load kext to 166512757592: com.apple.driver.AppleFireWireStorage 3.7.1 (addr 0xffffff7f8bba8000 size 20480)

  kexts responsible:

  com.paceap.kext.pacesupport.snowleopard 5.8

  com.shinywhitebox.iShowU - Audio-Capture 1.0.2

  com Blackmagic - design.desktopvideo.iokit.framebufferdriver 10.4.3

  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.AGPM 110.22.0

  com.apple.driver.ApplePlatformEnabler 2.6.0d0

  com.apple.driver.X86PlatformShim 1.0.0

  com.apple.driver.AppleOSXWatchdog 1

  com Apple.filesystems.autofs 3.0

  com.apple.driver.AppleHDAHardwareConfigDriver 274.12

  com.apple.driver.AudioAUUC 1.70

  3.12.7 com.apple.driver.AppleGraphicsDevicePolicy

  com.apple.driver.AppleHDA 274.12

  com.apple.driver.AppleUpstreamUserClient 3.6.1

  com.apple.driver.AppleMCCSControl 1.2.13

  com Apple.Driver.pmtelemetry 1

  com.apple.kext.AMDFramebuffer 1.4.2

  com.apple.iokit.IOUserEthernet 1.0.1

  com.apple.iokit.IOBluetoothSerialManager 4.4.6f1

  com.apple.AMDRadeonX4000 1.4.2

  com.apple.Dont_Steal_Mac_OS_X 7.0.0

  com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

  com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.6f1

  com.apple.driver.AppleHV 1

  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.AppleIntelSlowAdaptiveClocking 4.0.0

  com.apple.driver.AppleFIVRDriver 4.1.0

  com.apple.driver.AppleIntelMCEReporter 107

  com.apple.driver.AppleUSBDisplays 378

  com.apple.iokit.IOBluetoothUSBDFU 4.4.6f1

  com.apple.iokit.SCSITaskUserClient 3.7.7

  com.apple.driver.CoreStorageFsck 517.50.1

  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.AppleUSBODD 3.7.1

  com.apple.driver.AppleUSBStorageCoexistentDriver 3.7.1

  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.AppleACPIButtons 4.0

  com.apple.driver.AppleACPIEC 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.iokit.IOFireWireSerialBusProtocolTransport 2.5.1

  com.apple.iokit.IOFireWireSBP2 4.2.7

  com Apple.kext.Triggers 1.0

  com.apple.driver.DspFuncLib 274.12

  com.apple.kext.OSvKernDSPLib 525

  com.apple.driver.AppleSMBusController 1.0.14d1

  com.apple.iokit.IOSurface 108.2.3

  com.apple.iokit.IOSerialFamily 11

  com.apple.iokit.IOAcceleratorFamily2 205.11

  com.apple.driver.CoreCaptureResponder 1

  com.apple.driver.IOPlatformPluginLegacy 1.0.0

  com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.6f1

  com.apple.iokit.IOBluetoothFamily 4.4.6f1

  com.apple.driver.AppleHDAController 274.12

  com.apple.iokit.IOHDAFamily 274.12

  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

  com.apple.iokit.IOFireWireIP 2.2.6

  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.IOSlowAdaptiveClockingFamily 1.0.0

  com.apple.driver.AppleThunderboltEDMSink 4.1.1

  com.apple.driver.AppleThunderboltDPOutAdapter 4.1.3

  com.apple.driver.AppleUSBComposite 900.4.1

  com.apple.iokit.IOUSBHIDDriverPM 900.4.1

  com.apple.driver.AppleUSBHIDMouse 185,3

  com.apple.iokit.IOUSBHIDDriver 900.4.1

  com.apple.driver.AppleHIDMouse 185,3

  com.apple.driver.AppleHIDKeyboard 181

  com.apple.driver.usb.IOUSBHostHIDDevice 1.0.1

  com.apple.driver.AppleThunderboltPCIUpAdapter 2.0.2

  com.apple.driver.CoreStorage 517.50.1

  com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.7

  com.apple.iokit.IOBDStorageFamily 1.8

  com.apple.iokit.IODVDStorageFamily 1.8

  com.apple.iokit.IOCDStorageFamily 1.8

  com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.7

  com.apple.iokit.IOUSBMassStorageClass 4.0.2

  com.apple.iokit.IOUSBMassStorageDriver 1.0.0

  com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

  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.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.AppleThunderboltNHI 4.0.4

  com.apple.iokit.IOThunderboltFamily 6.0.2

  com.apple.driver.AppleXsanScheme 3

  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.IOHIDFamily 2.0.0

  com.apple.driver.AppleEFIRuntime 2.0

  com.apple.iokit.IOSMBusFamily 1.1

  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

  I have similar problems, but do not have a definitive answer to Apple. They replaced my D500 cards, graphics & the power supply but the plant still Mac Pro. According to the Apple phone support, looks like my logic board is bad. You will need to visit the Apple Store again to see what happens.

• starts automatically after a power failure

  Hello, I use a Macbook pro 8.1 13 "(A1278)"

  I need 'start automatically after a power failure' work as below

  

  Bun, my macbook can't activate this function. I can't find the same box. Check the screenshot below.

  

  I'm looking for the options "start automatically after a power failure".

  This feature appears to be available only for the Mac desktop.

• iPhone6 more WiFi and Bluetooth failure

  I have a problem

  Failure of Phone6 more WiFi and Bluetooth?

  https://youtu.be/JHom1urrwo4

  Take a look at this Apple Support article:

  https://support.Apple.com/en-us/HT204051

  Reset your network settings.

  Settings - general - reset - reset the network settings

  Reset your device. This will not erase your data stored on the phone.

  • Press and hold the sleep/wake button
  • Press and hold the Home button
  • Press and hold both buttons until the display turns off and on again with the Apple logo on the subject.

  Alternatively, you can go to settings - general - reset - Reset all settings

• Apple Watch sport does not work correctly. The display is 'crazy' once or twice a week and I need to force restart it. Do you know what is happening with the watch? Is this a common failure?

  Apple Watch isn't working properly. The display is to be 'crazy' once or twice a week. And I need to force restart it. Is this a common failure?

  Hello

  This isn't a failure or defect.

  Zoom (an accessibility function) has been activated on your watch and you are zoomed accidentally tapping on the screen in a particular way.

  • To turn off the Zoom:
    • On your iPhone, in the application of the watch, go to: My Watch (tab) > general > accessibility > Zoom - put it off.
    • Or on your watch, go to: homescreen (via a simple press on the digital Crown) > (cog icon) settings > general > accessibility > Zoom - tap and enable / disable.
  • If the accessibility shortcut has been enabled and configured for the Zoom, you can also enable and disable functionality more conveniently:
    • On your watch: quickly press the digital Crown (the round button) three times.
  • To set up accessibility shortcuts:
    • On your iPhone, in the application of the watch, go to: Watch My > general > accessibility > accessibility shortcut (bottom) > select / deselect Zoom.

• Of failure, white screen MacBook Pro HARD drive try to boot from the external HARD drive

  Hello

  I have a 2008 Macbook Pro which is having some problems, I was able to fix them, but eventually the hard drive failed. I know that because at startup until it would have a white screen Uni (no logo) and you can hear a clicking on in the lower left corner. I thought initially it was a memory problem, but after opening and verification of memory, it's clearly the hard drive.

  I solved this problem temporarily (until I can replace the HARD disk) by installing El captain on an external HARD disc and start from that. Here's the twist, I couldn't he can begin to El captain, I tried CMD + R, CMD + OPT + R, CMD + OPT + R + P and now shift. Everything that's happened would be that clicks would cease to release the keys.

  I left the macbook on while I'm at work, when I got home it was on the screen to connect the external HARD drive.

  I accidentally closed the macbook yesterday and again once when I tried to log on, I could not and I left it on a white screen while I was sleeping. There is a possibility that he may have launched from the HARD drive when I get home, but if not, is there something that escapes me to force do this?

  See you soon

  Usually start up to a blank screen without the Apple Logo, may report one of the following:

  • Hardware failure
  • Boot drive is not recognized as valid and updated updated
  • OS X essential software is missing, hurt moved or renamed or corrupt
  • A firmware update is necessary

  No matter who, in order to boot from an external drive "bootable", you would normally hold down the Option key until you get a screen that offers a number of devices to try to boot from.

  Alternatively, you can try holding down the C key to try to boot from the external drive.

  If none of these startup options work, then the bootable disc or the USB port on your MacBook Pro can be the question.

  Since you have a Mac pre-2013, if you hold down the D key while booting, the built-in Apple Hardware Test should start up.  This can help to identify hardware problems.

• Mac Book Air, failure of the motherboard

  Hi, I bought Mac Book Pro, a year and months back, yesterday, battery is down to 5%, so I continued to support, as I am studying end nyt I closed my MBA. Next day morning day when I tried to show him a folder with question mark symbol flashing. then I tried top in SafeMode it dint'showed hard drive. While I've taken at the authorized Service Center then they said his mother board failure and asked me to pay 42000INR. Is it really motherboard problem? What are the other options of best for me? and this is the price charged for the motherboard, even as they say? can I have any apple legal right againt for replacement?

  You can test it by connecting via USB, a boot disk.  If the Mac recognizes, the Mac, boots, then the internal drive or connection that is the problem.  Is it is not recognized, then it may very well be a logic card problem.

  Ciao.

• Impossible to install el capitan on MBP2009-sign of failure

  I have mid2009 MBP and it was el capitan on it before I win10 HD ALL FORMATE and INSTALLED, now without recovery of the internet that I want to get osx via win10

  I used transmac and fact a USB bootable HD to a snow leopard dmg, but he said he cannot be installed on my computer showing no option but the Time Machine backup, I don't have

  I did the same thing with a dmg el capitan he loaded 75%, but showed signs of failure and collapsed

  I need os x wrong and I am two weeks faced, please help

  Hello Mido, start safe mode and see if the install dmg will install properly.

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

  Restart now ' shift '.

  (Wait to take more time to start in this way because it runs a check of directory first. Also give it some time after the start because he runs maintenance routines at the beginning.)

• Time Machine backup failure

  I get the message:

  Time Machine could not complete the backup "Backups Time Machine". Full backup impossible. An error occurred during the creation of the backup folder.

  I reboot the system and am able to do the backup.

  Three questions:

  1 is my default backup drive and must be replaced?

  2. If I get a new drive, do I need to do any formatting when connecting it to my system?

  3. is there anything else that would work not to mention that the system restarts?

  Thank you!

  I should add that failures occur about once or twice a week.

• hard drive failure

  I recently tried to upgrade to el capitan in yosemite. He failed during the installation process, and now, whenever I boot my mac need me in disk utility. I can't erase, restore, Mount/unmount my osx partition. I took it to the store, they checked, and it was the hard drive failure. IM wondering how I can run windows on it. I can boot into window normally and everthing worked.

  MacBook pro early 2011

  Windows is located on its own partition, and if your Mac partition is damaged in any way it is not part of the windows installation.

  If an authorized service apple tells you to replace the drive, you will need to back up your windows partition with something else than Time Machine, if it's not an a separate physical disk.