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Recently I noticed my laptop fan was working harder, and there was this process using about 35% of CPU: powercfg.exe Power Settings Command-line Tool

I'm using Windows 8.1 and have never run that utility before myself.

The only noticeable change before this was that I installed CCleaner, did a cleanup and uninstalled it.

What I've done to fix the problem:

  1. Updated Windows -> No result
  2. Diagnostic startup -> The problem was gone

Update:
Today I noticed that even after ending the process, when the system was idle for a while, two instances of that process were back again and taking up to 50% of CPU.
Task Manager snapshot
Details view
Both of them where associated with this file: "C:\Windows\System32\powercfg.exe"

How can I find what caused this problem? I have a restore point for a couple of days before this but the problem is that it says some of the programs and drivers I updated may not work correctly. Should I ignore it and just restore?

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1 Answer 1

Reset to default
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I restored the system and the problem has gone. Since there's been no other answer, I consider this the only solution. Two takeaways:

  1. Don't turn off the restore point service of Windows. It can literally save you in such situations.
  2. Keep away from CCleaner. It has a history of being infected before.
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