I know this is a very old thread, but thank you for this. This worked for me.
How to permanently disable Windows 11 "efficiency mode"?
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Anonymous
New system
"Efficiency Mode" to OFF
Settings to maximize performance.
Opened Edge with 9 tabs, used for 15 minutes (every tab)
19 tabs and processes in "Efficiency Mode"
Types question
30 tabs and processes in "Efficiency Mode"
Windows STOPPED
Unable to change tabs or programs
The (anti) efficiency mode is severely disrupting system performance.
WHY?
How do I STOP this?
Windows for home | Windows 11 | Performance and system failures
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Anonymous
2024-09-30T21:58:58+00:00