No. / prohibited sign at startup

Similar Questions

• MacBook pro mid-2010 shows prohibited signs

  Hello Apple community, I need your help in reality two days ago my macbook pro mid 2010 running os x el capitan died suddenly following an unknown error, when I turned it on I noticed a forbidden error kept showing once more are trying. I did reset PRAM in now command + option + r + p + button / stop but no luck after I did ctrl + option + shifit + button / stop but mac not answered because it showed the apple icon and after a short loading showed me to new forbidden sign, after that I tried to boot into recovery mode of the internet now option + command + R , but I can not moved to internet recovery mode (I have not installed update efi) sometimes it shows exclamation mark sometimes it Boot normally without mode recovery story prohibited sign arrives without showing the connection.

  I've also done manually the alt key recovery mode I saw the recovery partition it and I clicked on recovery mode 10.11.3 after that click apple logo comes up and after loading it again once showed me prohibited sign instead of os x utility. I did everything and worked hard to solve this problem during these two days, but I couldn't solve my spirit is skipped now. Please help me how I can bring life in my macbook again.

  Sorry for my English thanks to you all

  Everything you described point to a failing HARD drive or possibly a bad SATA cable.  Remove the HARD drive, install it in a well known pen, plug it into the MBP via USB and start the MBP with the OPTION key down.  If the HARD drive icon and the MBP, boots, inner cable is the main suspect.  If it doe does not start the MBP, the HARD drive failed.

  Ciao.

• prohibitory signs but any withdrawal fine

  two days I received the Prohibitory sign up during startup. I searched the forums and googled around, but nobody has presented the same case.

  then that prohibitory sign was present, I was able to boot in safe mode, all saved. diskutil showed no problems with the hard disk, except the problem card partition but diskutil has not fixed it.

  now, I tried to start in mode single mouser, but received error cache kernel 0 x 6

  I started in safe mode, and everything was working fine... decided the formats and wipe everything. but before that, I did diagnostics equipment including the long version, but with no sign of hardware problem.

  has decided to format the HD and reinstall el Capitan...

  installation was made, started normally, set up my mac as good as new. restarted again to check if everything starts fine, but the prohibitive sign showed once again. Started by external hard drive, and performed first aid and it started again very well.

  was the PRAM/NVRAM and reset the SMC but no change.

  I don't know what the computer problem, especially that this single user with error cache kernel 0 x 6

  More information, five weeks until this problem presents itself, I modified the EFI to start like a black screen with the apple logo instead of the gray, with forum mac-forum/github.

  PS I am writing this same MacBook pro mid 2012 which is dealing with prohibitory signs.

  Any help would be appreciated... at the present time, the macbook pro is a clean installation with nothing installed on it, including third party software

  I would certainly run Apple Hardware Test.  There is a guide here on how to do it.  This error usually indicates a problem with the installation of the system, so I would try to repair the drive once more.

• Intermittent freeze, to wake up from deep sleep, occasional prohibitory sign at the start

  I have a MBP mid-2012. I recently had problems with a sign prohibitive blinking at startup but it would still proceed to start the operating system very well. I recently tried a clean install of El Capitan only to see that the problem was MUCH worse. After several new installs of El Capitan and Yosemite attempted to boot disks as well as on top moved after the recoveries of the internet, I have not solved yet completely the problem. I also tried to reset NVRAM and SMC.

  Currently I'm running Yosemite and have restarted, there 3 or 4 times without prohibitive side. I didn't let her go to sleep so I don't know if this problem persists. I always get a casual beach ball, but the computer is still sensitive semi. i.e. finder will be insensitive and programs won't load, but I can still move between open programs. This usually takes between 10 and 30 seconds. Occur less frequently in low demand.

  I'm afraid that my hard drive is failing, but I don't have any other evidence to support. I also heard that the sata cable could also be faulty. Is there something else that is maybe I should check/perform before ordering new parts? Is there anyway to check if it is really the reader or cable? The problem is not consistent and hardly repeatable. But it is quite common that I need to fix it. Also would like to have at least the option to upgrade the operating system one day.

  Thank you

  You could try the operation of an external device, to see if it could be memory or some other component.

  Beyond the diagnoses of Apple, please communicate with the folks at Apple Support or the folks at the local Apple Store Genius Bar and see if they will look at the Mac and you get an estimate of the repair.      Otherwise, you learn how to dismantle and to diagnose and repair...

• prohibitive gray screen, but the start of the option works

  I have a strange here.

  Early 2011 MBP - OSX 10.10.5.

  Everything was fine with the computer, and then all of a sudden the small wheel of death... computer slows down to a stop and then screen black.

  At startup - gray screen, blinking prohibitory sign several times and then begins to my second hard drive installed (I replaced the optical drive with a 2nd hard drive just in case something like that happens... more... that uses optical discs still!).

  I checked the "Startup disk" options in the preferences, then re-selected my SSD as my default player.

  Restart in safe mode... works as expected on the SSD.  Check disk utility, verify and repair permissions, checked the disk and, say, "could not mount the drive" (perhaps something to do with safe mode?).

  Restart again normally - prohibitive flashes and then after a few seconds, it starts as normal.  I checked the disk utility again, checked and repaired permissions, disk verified and no problem with the disk on THE.

  Stop and try again... lightning prohibitive and then after a few seconds, it starts as normal.  I have reset the SMC and the NVRAM.

  Not sure why I get this prohibitive symbol!

  I have restart holding 'option', all disks appear (SSD, HDD, recovery), so I click on SSD and it opens fine.

  Tips for how to start normally (without the prohibitive sign)?

  Thank you

  N

  A few ideas.

  Start - prohibitory signs when OS X starts

• Prohibitory sign with a twist

  Hello community,

  Since a month or two I feel the prohibitive sign with my macbook pro 13-inch mid 2012. Running on El Capitan 10.11.5

  It took about a month to start to repair it because I needed it for work so I kept it running until it got so slow that I had to turn it off.

  Since then, there are some things that happened;

  1 tried everything to reset PRAM and safety boots, but there was no way to boot. I didn't have a recent backup so I took the HARD drive and plugged into a SATA to usb adapter and saved some files and I deleted the system Bootcache.Kext file as Apple advises in one of their sons (link on request). After this he worked again, put the disk HARD back in and everything worked... for a few days.

  2 he really slow down again. Again, I had to do about it and I just kept it on socket. Slow to get and had to reload, new prohibitory sign. So I repaired disk permissions again and all that. Nothing works, but very sometimes it start after having tried like 20 times to start. But once again his lag, it says its loading for like a minute, and then it works like a charm for a minute.

  3. If last night I deleted everything from the hard drive. He gave a clean install, but he always gave me the prohibitive sign. Even among the boots of the installation (which makes me think its a hardware problem)

  4. now comes the twist. If I unscrew the drive of his carrot and the hold or the lay out of the body, its totally fine and it works like a charm. When I put the HARD drive in the body on the hardware side, it is always very good, but when I put the HARD drive on the side of the body (where is located the small power LED light) it freezes and it does not work with bootups. Even if I start the system with the HARD drive out of the body and its all ready, as soon as I put it in it gives me the Rainbow thing mac loading and everything freezes. When I take it back once again, it takes 10 to 15 seconds and it works like a charm again.

  What is going on?

  Anyone had this before please let me know!

  Tim

  There was a wave of bad SATA cables in your MacBook. You should consider a replacement.

• PowerPC applications are no longer supported.

  I am a teacher and all my tests are done on 5.2 view review program by Prentice Hall. My school bought in 2014. When I try to run it in my macbook 2016 pro I get this message, "unable to open 'The ExamView Player installer' application because the PowerPC applications are no longer supported." I really don't want to have to redo all my tests.

  Any help would be greatly appreciated! My students thank you too!

  Apple has stopped supporting these types of applications when they moved to the Lion that was 6 years ago.

  OS x: the Application icon has a prohibitive sign or "PowerPC applications are no longer supported" appears - Apple Support

  See for some background information

  http://www.CultofMac.com/103458/OS-x-lion-kills-Rosetta-PowerPC-support-heres-WH to the-to-do-matter-it.

  You will need to contact Prentice Hall to find a version that runs on your current OS X.

  A site lists a different version of a product called Examview compatible with 'Mac OS versions 10.9, 10.10 and 10.11' but I don't know if this is the product you are referring to.

  See https://www.turningtechnologies.com/products/examview

• iMac late 2013 10.11 OS crashes when you wake up from sleep

  10.11.4 OS iMac late 2013

  Sometimes freezes upon awakening from sleep. Symptoms include:

  • Black screen with a mobile mouse
  • A blank desktop (no icon) when using expose function
  • Deterioration of the function so that the machine does not respond with the exception of a mobile mouse cursor
  • After a hard reboot forced, commissioning several times with a prohibition sign
  • I reinstalled the operating system
  • Run firstaid
  • Run the diagnostic mac

  Only console records until the machine sleeps and is empty while crashing. This is a recent journal in the moment before he slept, rose and crashed.

  28/03/16 3:59:57.578 PM Google Chrome support [823]: CGAffineTransformInvert: singular matrix.

  28/03/16 4:00:23.300 PM awacsd [182]: InnerStore GetWakeInfoForZone: no external port for 1301249226.members.btmm.icloud.com.

  28/03/16 4:00:23.954 PM awacsd [182]: InnerStore GetWakeInfoForZone: no external port for 1301249226.members.btmm.icloud.com.

  28/03/16 4:00:23.961 PM awacsd [182]: InnerStore GetWakeInfoForZone: no external port for 1301249226.members.btmm.icloud.com.

  28/03/16 4:00:43.543 PM TogglDesktop [372]: receiveSleepNote: NSWorkspaceWillSleepNotification

  28/03/16 4:00:43.543 PM AirPlayUIAgent [339]: 2016-03-28 04:00:43.543054 PM [AirPlayUIAgent] BecomingInactive: NSWorkspaceWillSleepNotification

  28/03/16 4:00:43.543 PM CrashPlan menu bar [466]: * WE ARE __NOT__ CONNECTED *.

  28/03/16 4:00:43.544 PM CommCenter [276]: CSI telling to go to low power.

  28/03/16 4:00:43.549 PM sharingd [293]: 16:00:43.548: scan BTLE turned off

  28/03/16 4:00:44.534 PM WindowServer [183]: device_generate_desktop_screenshot: authw 0x0 (0), shield 0x7fdfb4313c00 (2001)

  28/03/16 4:00:44.605 PM WindowServer [183]: device_generate_lock_screen_screenshot: authw 0x0 (0) [inf, inf, 0, 0] shield 0x7fdfb4313c00 (2001), dev [2560,1440]

  28/03/16 4:00:44.644 PM identityservicesd [298]: IMMacNotificationCenterManager: 0x7ff2dd324b20 >: Observer of notification: notification com.apple.iChat: __CFNotification 0x7ff2dd12c390 {name = _NSDoNotDisturbEnabledNotification}

  28/03/16 4:00:44.644 PM image [340]: IMMacNotificationCenterManager: 0x7fe273b02340 >: Observer of notification: notification com.apple.FaceTime: __CFNotification 0x7fe271419b20 {name = _NSDoNotDisturbEnabledNotification}

  28/03/16 4:00:44.662 PM identityservicesd [298]: IMMacNotificationCenterManager: 0x7ff2dd324b20 >: NC disabled: NO

  28/03/16 4:00:44.662 PM image [340]: IMMacNotificationCenterManager: 0x7fe273b02340 >: NC disabled: NO

  28/03/16 4:00:44.662 PM sharingd [293]: 16:00:44.662: purged hashes contact

  28/03/16 4:00:44.663 PM sharingd [293]: 16:00:44.662: discoverable mode changed to Off

  28/03/16 4:00:44.663 PM sharingd [293]: 16:00:44.662: Scan stopped BTLE

  28/03/16 4:00:44.671 PM identityservicesd [298]: IMMacNotificationCenterManager: 0x7ff2dd324b20 >: DND enabled: YES

  28/03/16 4:00:44.671 PM image [340]: IMMacNotificationCenterManager: 0x7fe273b02340 >: DND enabled: YES

  28/03/16 4:00:44.671 PM image [340]: IMMacNotificationCenterManager: 0x7fe273b02340 >: update enabled: No. (subjects: ())

  ))

  28/03/16 4:00:44.671 PM identityservicesd [298]: IMMacNotificationCenterManager: 0x7ff2dd324b20 >: update enabled: No. (subjects: ())

  ))

  28/03/16 4:00:58.679 PM powerd [53]: BUG in libdispatch: 15E65 - 1718 - 0x0

  28/03/16 4:00:58.000 PM kernel [0]: ARPT: 4948.045748: wl0: TCPKEEP: locate_keepalive_data_new_uc: No. IPV4 base10, keepalive has not begun.

  28/03/16 4:00:58.000 PM kernel [0]: ARPT: 4948.045757: wl0: MDNS: IPV4 address: 10.0.1.9

  28/03/16 4:00:58.000 PM kernel [0]: ARPT: 4948.045762: wl0: MDNS: IPV6 Addr: fe80:0:0:0:8 has 63: dfff:feb4:10 c 3

  28/03/16 4:00:58.000 PM kernel [0]: ARPT: 4948.045767: wl0: MDNS: IPV6 Addr: fdb5:4267:2f7:1:8 has 63: dfff:feb4:10 c 3

  28/03/16 4:00:58.000 PM kernel [0]: ARPT: 4948.045772: wl0: MDNS: IPV6 Addr: fdb5:4267:2f7:1:895's: bd12:2d8c:adf1

  28/03/16 4:00:58.000 PM kernel [0]: ARPT: 4948.045777: wl0: MDNS: 0 SRV REB, 0 REB TXT

  28/03/16 4:00:58.000 PM kernel [0]: IOCTL unrecognized: 234 on 236

  28/03/16 4:01:01.000 PM kernel [0]: PM response has taken ms 3227 (53, powerd)

  28/03/16 4:01:01.000 PM kernel [0]: kern_open_file_for_direct_io (0)

  28/03/16 4:01:01.000 PM kernel [0]: kern_open_file_for_direct_io took 18 ms

  28/03/16 4:01:01.000 PM kernel [0]: open /var/log/SleepWakeStacks.bin file, size 172032, extensions 2 ssd maxio 2000000 1

  28/03/16 4:01:01.000 PM kernel [0]: surveyed major file 1, minor 0, 4096 blocksize, pollers 5

  28/03/16 4:01:01.000 PM kernel [0]: ARPT: 4951.192049: AirPort_Brcm43xx::powerChange: sleep system

  What 'event' immediately prior to the onset of this bad behavior? Update/update OS X or other software? Adding hardware (devices)? Nothing at all.

• iMac 2013 becomes unresponsive

  About once a day, with El Capitan iMac reacts forcing a hard power off. Here are the different symptoms.

  The system becomes increasingly less sensitive.

  The screen may go black but the mouse cursor remains active.

  Can I get a color wheel when hovering over the Apple/Finder menu, but not on the portion of time/volume.

  Windows can be stuck off the screen when displaying the desktop. I can always click on the icons on the desktop, but nothing happens.

  I can bring up and place the cursor on the dock, but I can't open anything.

  Sometimes I can open items in the dock, but there is not a right click on the feature.

  I can get a prohibitive sign on reboot, asking the second restart.

  When I boot, the same random folder iphoto opens upward... (Like some buried the hidden database file.)

  El Capitan 10.11.2 (15 c 50)

  iMac (27 inch, at the end of 2013)

  3.5 GHz Intel Core i7

  32 GB 1600 MHz DDR3

  NVIDIA GeForce GTX 775M 2048 MB

  CLICKY CLICK---> EtreCheck & and paste your report.

  "EtreCheck is a simple little app to display the important details of your system configuration and allows you to copy this information to the Clipboard. It is intended to be used with Apple Support communities to help people to help you with your Mac. »

  

• El Capitan Help! I'm stuck on a screen with a bar oblique circle!

  I have a MacBook Pro (2011) and I recently got my computer fixed with a new hard drive and this who do not. I went to install El Capitan only then as soon as it finished downloading, it just freezes and returns to a white screen with a slash through it circle. I have not installed Yosemite because I was not so much on the installation of a program bug infested. then when I got my laptop fixed, I knew that I should install El Capitan because on what my father told me. So now it's almost six hours later, and I get this. I'm so scared about what happened to my computer, I back upwards all my important things for flash drives and external hard drive. But now I don't know what to do! I restarted and the white screen, load line looks like 90% done but it does not move. After a few seconds, the display returns to the white screen with a slash of circle. Please help me. I need to know what is the problem with my computer before going back to College in a few weeks!

  The prohibitive sign means the computer found the boot disk, but did not find an operating system to boot from.  Start to recovery and reinstall OS X.

  OS X: on OS X Recovery - Apple Support

• View user profile cannot be loaded

  There are two user profiles on my system Louise and Pete.  Both are of type administrator.  Pete can register on the property.  When Louise tries to sign at startup or when switching between users it gets the error: "the service user profile Service has no logon.  User profile cannot be loaded.  We run Vista SP2 on an old Dell Inspiron 530 for one year.  Scan of Norton has not found error.  Problem began three days ago... forward so that everything was fine.  No new software has been loaded and the system has not been modified by us.

  Hello

  You can try to fix it with Safe Mode - repeatedly press F8 as you bootup.

  Some programs such as the updated Google (if you added the toolbar Google, Chrome or Google Earth)
  has been known to cause this problem.

  How to fix error "the user profile Service has no logon. User profile cannot be loaded. »
  http://www.Vistax64.com/tutorials/130095-user-profile-service-failed-logon-user-profile-cannot-loaded.html

  How to fix error "your user profile was not loaded correctly! You have been connected with a
  temporary profile. "in Vista
  http://www.Vistax64.com/tutorials/135858-user-profile-error-logged-temporary-profile.html

  BE VERY CAREFUL IF YOU USE THIS ONE:

  DO NOT USE THE ACCOUNT HIDDEN ON A DAILY BASIS! If it corrrups you are TOAST.

  How to enable or disable the real built-in Administrator account in Vista
  http://www.Vistax64.com/tutorials/67567-administrator-account.html

  Use the hidden administrator account to lower your user account APPLY / OK and then lift it to ADMIN.
  This allows clear of corruption. Do the same for other accounts if necessary after following the above message.

  You can use the hidden - administrator account to make another account as an ADMINISTRATOR with the same password (or
  two with the same password) use to test or difficulty of the other.

  You can run the Admin account hidden from the prompt by if necessary.

  This tells you how to access the System Recovery Options and/or a Vista DVD
  http://windowshelp.Microsoft.com/Windows/en-us/help/326b756b-1601-435e-99D0-1585439470351033.mspx

  If you cannot access your old account, you can still use an Admin to migrate to another (don't forget
  always leave to an Admin who is not used except for testing and difficulty account).

  Difficulty of a corrupted user profile
  http://windowshelp.Microsoft.com/Windows/en-AU/help/769495bf-035C-4764-A538-c9b05c22001e1033.mspx

  I hope this helps.
  Rob Brown - MS MVP - Windows Desktop Experience: Bike - Mark Twain said it right.

• Windows 7 - Media Center - TV Pinnacle USB Mini Pro (80th) adapter does not show clear Option of Signal TV QAM.

  Hi all
  I have Windows 7 Ultimate 64 bit and a USB Pinnacle USB TV adapter (80th).  Which works fine with the software provided by Pinnacle, (TV Center Pro) using Clear QAM. However, I want to use the adapter USB TV with Windows 7 Media Center.  When I go in the options of signal TV of WMC, it shows Clear QAM as an option.  Can someone tell me please how to display the QAM option?  And why is it hidden initially?

  Bad bad Microsoft!  Shame on you for something!

  Thank you
  Jay

  Hi all
  I finally got that it works, and that a single push.

  First of all, I uninstalled all drivers for my TV card in Device Manager. I had to do this several times, as he kept drivers already installed conclusion, but finally there lack of pilots.

  -Reboot
  -J' pressed F8 during boot and selected "disable driver signing" at startup.
  -Once Windows 7 has been started, I installed the drivers Beta 64-bit listed above.
  (I didn't understand how automatic default to F8 and 'Disable driver signing', always looking at this information, my plan is not to restart very often at the moment.)
  -Then, I scanned for TV stations, technnicaly my adapter showed as two adapters, said the Media Center window to search for the two adapters and found all my ClearQAM channels.

  I have installation check, I'll see how it works, but so far, Windows Media Center looks really sweet.

  I hope this helps others, I know that I spent many hours to find it.

  Jay

• How to make a mask for a few copy merged layers?

  

  Here are a few layers of copy merged, which I dragged from an other image; now I need to remove the extra stuff;

  by clicking on the icon mask gives the prohibitive sign.

  Thank you

  make a group of them (Ctrl-G) then add the mask to the group.

  or

  convert to smart object layers, and then add a smart object layer mask.

• MacBook pro not finishing startup. I can sign in but after sign in screen grey rest

  MacBook pro not finishing startup. I can sign in but after sign in screen grey rest

  Have you tried a secure boot?

  OS X Yosemite: start in safe mode

• How can I get around having to sign into my account (Windows Vista 7) during startup as I forgat my password?

  How can I get around having to sign into my account (Windows Vista 7) during startup as I forgat my password?

  Hello Bob Zientak,.

  If a password is required to log on your system, then you won't be able to cirumvent it. Unfortunately the users of this forum are also not allowed to suggest ways to help you bypass (hack) the password (3668Microsoft Terms and Conditions).

  Remember passwords are case sensitive so maybe that you type a password in the case of bad? Did you create a password recovery disk when you created your password first? If Yes, then you must insert the password recovery disk to allow you to change the current password. If you did not create a password recovery disk then the next and more radical, opion is to re - install Windows.

  This forum post is my own opinion and does not necessarily reflect the opinion or the opinion of Microsoft, its employees or other MVPS.

  John Barnett MVP: Windows XP Expert associated with: Windows Expert - consumer: www.winuser.co.uk | vistasupport.mvps.org | xphelpandsupport.mvps.org | www.silversurfer-Guide.com