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All replies
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Helpful answers
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May 27, 2016 1:30 AM in response to Anthony Le DHLby D.Cohen,Hi.
Try restarting your Mac in Safe mode:
- Shut down your Mac
- Wait until your computer turns off and after that press the Power button
- Right after you hear the startup tone, press and hold the Shift key
- Release the Shift key when you see a grey Apple sign and the progress bar below this sign
- Once you see Desktop, start a Disk Utility scan to detect and repair file system errors (don't forget to choose your main hard drive)
- Click on Verify Disk and then, if asked to fix problems, on Repair Disk
- After this, click on Verify Disk Permissions and then on Repair Disk Permissions
- After the process is finished, shut down your Mac and turn it back on after about 30 seconds
Hope this helps! -
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by Grant Bennet-Alder,May 27, 2016 7:52 AM in response to Anthony Le DHL
Grant Bennet-Alder
May 27, 2016 7:52 AM
in response to Anthony Le DHL
Level 9 (60,714 points)
DesktopsSeeing the "prohibitory sign" (circle with slash) says components needed to start up Mac OS are missing. A re-Install may be needed, or the Boot Drive may be corrupted or failing.
Seeing the blinking question mark, sometimes on a folder icon, says your Mac could not find the boot drive at the address specified in System Preferences > Startup Disk.
Seeing the dark gray Apple tells you your boot drive responded with a Blob of software and tried to run it. (the Dark Gary Apple is not in the Mac's ROM.)
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Jun 3, 2016 7:17 PM in response to Anthony Le DHLby Anthony Le DHL,Hi All,
Thanks your strong support.
My MAC had been HDD fail.
I need change the new HDD.
Thanks all again.