![](https://learn-attachment.microsoft.com/api/attachments/e8c660f6-34c2-4550-a3a6-0c856ae2def3?platform=QnA Since yesterday (28 March) Google chrome is unusable. Task manager on my windows desktop says that efficiency mode is active for several but not all sub-processes of google chrome and I believe that is the reason for the drop in performance. I am able to disable efficiency mode for each individual sub-process, but *it returns a few minutes later. I cannot permanently disable it.*Simple actions such as changing a tab or moving the window causes it to freeze for several minutes. I have no recent or current updates to install. Everything is up to date.- There are no other demanding processes / apps running on my pc- I have tried altering Chrome's performance and memory settings. Nothing changed.- This problem is the same with Edge and some other applications.- Efficiency mode is greyed out for the entire application. Only certain sub-processes of chrome are in efficiency mode. The only difference between yesterday and today, is that efficiency mode is active non-stop. I do not want efficiency mode running at all for google chrome as it is the main browser I use for work and school.

I switched to Brave browser. Brave is as fast as Chrome (same underlying Chromium engine) but Brave browser (thankfully) does NOT leverage that EcoQOS/EfficiencyMode functionality in Windows. The truth is this: To fix this issue it will require one of two things: Windows 11 would need to be updated to change how EfficiencyMode is implemented. But likelihood of that is <<small. Chrome code would need to be modified to give users control over whether or not their browser makes the Windows EcoQOS system calls. A setting that would disable it entirely. This is the direction that should be taken since it is the application that determines if it is going to make those Windows system calls. Windows doesn't control whether or not an app is leveraging EcoQOS it is a choice the app dev makes. Basically, the Chrome fix is better but it is anyone's guess on when that will be done. Just use Brave and be done with it.

please microsoft fix this issue, as even i am typing this reply to you it got stuck for about a minute. Its getting more frustrated for us fix the bug as soon as possible!!!!!!! MICROSOFT PLEASE DO CARE TO REPLY ONCE AND GIVE AS ASSURANCE THAT YOU ARE REALLY LISTTENING AND HELPING US BY GETTING THESE COMMUNITY COMPLAINTS!!!!!

The problem is rooted in the EcoQOS feature in windows. Developers of apps can call a windows API and opt in to have their application use reduce resources when not needed. See: https://devblogs.microsoft.com/performance-diagnostics/introducing-ecoqos/ I have not yet found a way to turn it off in reg but have tried a registry modification that may work. (This is for Win10 but was related to a similar throttling behaviour. Start here: HKLM\System\CurrentControlSet\Control\Power Add new key: "PowerThrottling" Add 32bit DWORD: "PowerThrottlingOff". Set it to 1. Update - Following reboot, I still see chrome subprocesses in Efficiency Mode so don't think that reg change worked. Reverting.

I do not have the option there.

How to disable efficiency mode in task manager? Windows efficiency mode is making apps like Google Chrome unusable.

Anonymous

![](https://learn-attachment.microsoft.com/api/attachments/e8c660f6-34c2-4550-a3a6-0c856ae2def3?platform=QnASince yesterday (28 March) Google chrome is unusable. Task manager on my windows desktop says that efficiency mode is active for several but not all sub-processes of google chrome and I believe that is the reason for the drop in performance.

I am able to disable efficiency mode for each individual sub-process, but *it returns a few minutes later. I cannot permanently disable it.*Simple actions such as changing a tab or moving the window causes it to freeze for several minutes.

I have no recent or current updates to install. Everything is up to date.- There are no other demanding processes / apps running on my pc- I have tried altering Chrome's performance and memory settings. Nothing changed.- This problem is the same with Edge and some other applications.- Efficiency mode is greyed out for the entire application. Only certain sub-processes of chrome are in efficiency mode.

The only difference between yesterday and today, is that efficiency mode is active non-stop.

I do not want efficiency mode running at all for google chrome as it is the main browser I use for work and school.

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous

Hi, please try this method, it works for me:

https://techdows.com/2023/07/permanently-disable-efficiency-mode-for-chrome-in-task-manager-windows-11.html

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Anonymous

2023-06-05T18:25:27+00:00
I switched to Brave browser. Brave is as fast as Chrome (same underlying Chromium engine) but Brave browser (thankfully) does NOT leverage that EcoQOS/EfficiencyMode functionality in Windows.

The truth is this:

To fix this issue it will require one of two things:
1. Windows 11 would need to be updated to change how EfficiencyMode is implemented. But likelihood of that is <<small.
2. Chrome code would need to be modified to give users control over whether or not their browser makes the Windows EcoQOS system calls. A setting that would disable it entirely. This is the direction that should be taken since it is the application that determines if it is going to make those Windows system calls. Windows doesn't control whether or not an app is leveraging EcoQOS it is a choice the app dev makes.
Basically, the Chrome fix is better but it is anyone's guess on when that will be done.

Just use Brave and be done with it.
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Anonymous

2023-06-05T17:09:10+00:00

please microsoft fix this issue, as even i am typing this reply to you it got stuck for about a minute.
Its getting more frustrated for us
fix the bug as soon as possible!!!!!!!

MICROSOFT PLEASE DO CARE TO REPLY ONCE AND GIVE AS ASSURANCE THAT YOU ARE REALLY LISTTENING AND HELPING US BY GETTING THESE COMMUNITY COMPLAINTS!!!!!
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5 people found this answer helpful.

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Anonymous

2023-06-03T04:20:18+00:00
The problem is rooted in the EcoQOS feature in windows. Developers of apps can call a windows API and opt in to have their application use reduce resources when not needed.

See: https://devblogs.microsoft.com/performance-diagnostics/introducing-ecoqos/

I have not yet found a way to turn it off in reg but have tried a registry modification that may work. (This is for Win10 but was related to a similar throttling behaviour.
1. Start here: HKLM\System\CurrentControlSet\Control\Power
2. Add new key: "PowerThrottling"
3. Add 32bit DWORD: "PowerThrottlingOff". Set it to 1.
Update - Following reboot, I still see chrome subprocesses in Efficiency Mode so don't think that reg change worked. Reverting.
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Anonymous

2023-05-29T20:43:39+00:00

I do not have the option there.
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