MyMac8MyPC

Level 1 (18 points)

Mac OS X

Q: Energy saver settings wont save

Since we updated to 10.12 Sierra our Energy Saver Settings won't save.

We set them and then the next time we boot up they are back to the default settings.

What are we missing? We've tried various things but nothing seems to work.

Any help would be appreciated.

Mac mini, iOS 10

Posted on Sep 27, 2016 9:38 AM

I have this question too

Q: Energy saver settings wont save

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Helpful answers

by Ulexes138,

Ulexes138 Sep 28, 2016 12:13 PM in response to MyMac8MyPC
Community Specialists

Sep 28, 2016 12:13 PM in response to MyMac8MyPC

Hello MyMac8MyPC,

Thanks for reaching out to the Apple Support Community. I know how important it is to keep you Mac running efficiently and the energy saver options are great way to do that. Before we go to far it's always a good idea to back up your Mac using Time Machine. If you don't already have a backup and would like to make one have a look at this article for the steps to do so:

Use Time Machine to back up or restore your Mac

Next I'd recommend resetting your NVRAM (aka PRAM) which stores some of the settings on your Mac. This article will guide you through that process:

How to Reset NVRAM on your Mac

If the behavior persists, or you run into any trouble, the entire community is here to help.
Best Regards
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by MyMac8MyPC,

MyMac8MyPC Sep 28, 2016 12:18 PM in response to Ulexes138
Level 1 (18 points)

Mac OS X

Sep 28, 2016 12:18 PM in response to Ulexes138

Thank you Ulexes138. I will try this tonight and report back. Thanks again!
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by MyMac8MyPC,

MyMac8MyPC Oct 1, 2016 10:29 PM in response to MyMac8MyPC
Level 1 (18 points)

Mac OS X

Oct 1, 2016 10:29 PM in response to MyMac8MyPC

Unfortunately this did not work. It still reverts back to default settings
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by trevoz,

trevoz Oct 1, 2016 10:42 PM in response to MyMac8MyPC
Level 2 (210 points)

Mac OS X

Oct 1, 2016 10:42 PM in response to MyMac8MyPC

Try from a Terminal window:

sudo rm /Library/Preferences/com.apple.PowerManagement.plist

and then reboot and setup the energy setting again.
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