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startup error

  1. L

    MacBook Air grey screen of death

    Hi all, my niece's 2012 MacBook Air has gone as dead a dodo. When powering on, after 2 seconds the startup-chime sounds, followed immediately by a grey screen, then nothing. It just stays on the grey screen indefinitely. I've tried resetting NVRAM, resetting the SMC, going in to recovery mode...
    • leeuk321
    • Thread
    • grey screen macbook macbook air macbook air mid-2012 startup error
    • Replies: 2
    • Forum: MacBook Air
  2. A

    Startup Issues - Black Screen with Folder. Doesn't wake but can log in

    My MacBook Pro Ventura (13.2.1 ) when sleeps now doesn't wake when I open lid. This happened prior to updating to Ventura. This may be coincidence but it happened first after deleting AVG antivirus from my system. So I have been through complete reinstall of Ventura - same issue. I ran Apple...
  3. S

    Late 2009 iMac works in safe mode only

    My 27" late 2009 iMac froze the other day. Upon restarting it hangs at around 60-80% loading bar on the apple logo start screen. I managed to login into recovery mode disk utility and duplicate my drive to recover data. I ran first aid and no errors showed up. Was still unable to access so I...
    • Sunil355
    • Thread
    • imac late 2009 27'' loading bar safe mode startup error
    • Replies: 15
    • Forum: iMac
  4. J

    Mac Pro 5,1 refusing to load with hdmi connected - new GPU

    Hi guys, Newbie here! Hoping I can get some advice! I've got a mac pro 5,1 2012 and I've just installed an msi radeon rx 560 4gb graphics card, ready for upgrade to Mojave. I've got a 4k monitor which I was using on hdmi without any problems on my last card, now it seems the mac only boots...
    • jtyh1g11
    • Thread
    • gpu hdmi help mac pro (2012) startup error
    • Replies: 9
    • Forum: Mac Pro
  5. M

    Mac won't start up...

    I went on a short vacation and so I unplugged all my computers, the modem, and the phone line to the modem. My backup computer is a G4 Mirrored Door Drive. I've never had any issues with it. But this time it won't start up: It gives a 2-second "whirrrrr....." and then nothing. I fear the...
  6. Mfrazee

    Prohibitory Sign help!

    Hi everyone, new to the forum here. I don’t consider myself a computer wiz, though I know more than the average consumer. I’ve been having bizarre issues come up since installing High Sierra, so I tried to do a factory reset of my 2017 MacBook Pro. I erased my drive and restarted the...
    • Mfrazee
    • Thread
    • high sierra macbook pro (15" 2017) prohibitory sign startup disk startup error
    • Replies: 0
    • Forum: MacBook Pro
  7. cjaames

    MacBook Pro Glitch/Restarting, Possible RAM Issue?

    Hi guys! I have a MacBook Pro Mid 2012. I bring it with me on campus every day. I always put my MacBook to sleep after using it and before putting it in its sleeve and in my backpack. For some reason, a couple of weeks ago when I went to take my computer out of my backpack about an hour after...
    • cjaames
    • Thread
    • code error glitch macbook macbook pro macbook pro 2012 memory ram ram issue startup error troubleshooting
    • Replies: 2
    • Forum: MacBook Pro
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