cmwdaw
Level 1
(4 points)
Q: iMac 27" problem starting
My Mac has shut itself down. When I push the start button I hear the chime, the start up bar gets about 3/4 of the way finished, then the Mac shuts down again. How do I get my Mac back?
iMac (27-inch Mid 2010)
Carolyn Samit
Level 10
(124,814 points)
Hi ..
A Safe Mode boot deletes system caches that may help.
Top left corner of your screen click the Apple > Shut Down.
After your Mac shuts down, wait 10 seconds, then press the power button.
Immediately after you hear the startup tone, hold down the Shift key. You should press the Shift key as soon as possible after you hear the startup tone, but not before.
Release the Shift key when you see the gray Apple logo and progress indicator.
Once you are in Safe Mode, go back to the Apple menu. From the drop down menu click: Restart
About Safe Mode
