startup error

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...

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...

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...

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...

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...

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...

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...