HT201262: Try safe mode if your Mac doesn't finish starting up
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Q: Mac osx not booting up completely and shuts down
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May 12, 2015 7:03 AMby lllaass,As I said before:
If you have Lion or try booting to Recovery and repairing the startup disk
If not then boot from install DVD and repair the startup disk
If you can't repair then try formatting the startup disk and reinstall the OS.
If still problem that means the startup disk is bad.
