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circle with a slash symbol. Do i restore from t...

Hi when I turn on my mac a symbol comes up with a slash. From what I understand it can't find a valid system folder to start up. My question is, do I need to restore from my time machine or re install OS X? Thank you in advance 

About the screens you see when your Mac starts up - Apple Support

 

Possibly a failed hard drive. 

Yes that is what I've read. I need to re install the OS X but not sure if I should be doing from the back up time machine or re install OS X again?

Have you attempted starting in Safe Mode??

Mac is recovery which takes me to utilities

Restart in Safe Mode. If you don't know how please review Use safe mode to isolate issues with your Mac - Apple Support

Thank you, when starting up in safe mode this comes up....

最後更新：2017-09-08 16:53:43

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