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Old Feb 22, 2012, 06:37 PM   #1
munckee
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HELP: tried to update software, now my iMac won't start

I ran software update which gave me an error and asked me to restart. I hit "ok" and when the computer tries to boot, it gets to the load screen which in addition to the normal "spinner" now has a loading progress bar. Every time it gets roughly 25% through the progress bar and then simply shuts off.

I tried zapping the PRAM and have tried starting into safe mode but neither work.

HELP
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Old Feb 22, 2012, 10:55 PM   #2
simsaladimbamba
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Here are some other options to try:
Mac doesn't boot

Resolve startup issues and perform disk maintenance with Disk Utility and fsck

Troubleshooting: My computer won't turn on

A flashing question mark appears when you start your Mac
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