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Its been a while since my macbook pro started updating, and it is stuck.

Wondering if I should shut it down or leave it a bit longer?

The progress bar is stuck and there is no remaining calculated ( calculating time remaining ... )

  • If you are sure that you have good network connectivity and you upgrade has completely downloaded. I usually give a stalled update overnight. If it hasn't done it by then time to kill the power and hope for the best... YMMV – Steve Chambers Dec 8 '17 at 21:25
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I would wait as long as possible. When you force shut down a computer that’s in the middle of an update, you’re likely going to have to do recovery and reinstall the OS. I did hear of one case where that wasn’t necessary, but usually that’s the case.

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The length of time you should wait is proportional to the time since your last backup.

i.e. if you backed up an hour ago, you can be as impatient as you like.

If it was last month, or never... more patience is warranted

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