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Q&A Why is the efficiency mode option greyed out in Task Manager, and how can I turn off efficiency mode for Brave and Chrome?

The menu entry to enable/disable efficiency mode is greyed out when the program in question has more than one process, indicated by the number of processes in parentheses behind the program name, i...

posted 1y ago by GeraldS‭

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#1: Initial revision by

GeraldS‭ · 2025-07-09T14:03:38Z (about 1 year ago)

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The menu entry to enable/disable efficiency mode is greyed out when the program in question has more than one process, indicated by the number of processes in parentheses behind the program name, in your case 18 for Chrome on the first screenshot.

For these programs you have to expand the process group, then you can/have to set the efficiency mode for every process.

![Screenshot of the Windows task manager with the process group for Google Chrome expanded. A context menu on one of the processes is shown that has the menu entry "Efficiency mode" highlighted and available](https://powerusers.codidact.com/uploads/zz366vz4o6ebvyw3brjjakkcu1sr)

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