Q: Mac OS Sierra

I went to download the Mac OS Sierra and it said it had about 30 minutes left to download and it randomly shut off. It brought me to the sign in page where I type in my password, so I type it in and it says that my computer has restarted becausenof a problem. Press a key or wait a few seconds to continue starting up. So I waited and it brought me to the sign in page again. Does anybody know what I can or should do? I shut it down and restarted it multiple types already from my sign in page.

MacBook Pro

Posted on Oct 6, 2016 7:41 AM

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Q: Mac OS Sierra

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by lllaass,

lllaass Oct 6, 2016 7:45 AM in response to krmiddle
Level 10 (190,740 points)

Apple Watch

Oct 6, 2016 7:45 AM in response to krmiddle

- Try resetting the SMC and NVRAM/PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
https://support.apple.com/en-us/HT201295
About NVRAM and PRAM
https://support.apple.com/en-us/HT204063
- Try starting in Safe Mode
OS X: What is Safe Boot, Safe Mode?
https://support.apple.com/en-us/HT201262
- Boot to Recovery and repair the startup disk
OS X: About OS X Recovery - Apple Support
https://support.apple.com/en-us/HT201314
- If it is repairable reinstall the OSX
How to reinstall OS X on your Mac - Apple Support
https://support.apple.com/en-us/HT204904
- If you do not have a backup use disk utility to restore the internal disk to an external disk so you can try to recover data.
Then format the startup disk and do a fresh install of OSX

This is the Mac Pro desktop forum. I requested your post be moved to the MacBook Pro laptop forum or other appropriate forum.
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Q: Mac OS Sierra

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by lllaass,

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