How to Enable Efficiency Mode in Windows 11
Efficiency Mode in Windows 11 lowers processor usage for background apps to speed up your computer and save battery life. Windows 11 uses a built-in feature called EcoQoS (a tool that puts heavy background tasks on a lower priority) to keep your main apps running smoothly.
You can turn on Efficiency Mode for any app inside the Task Manager . This stops background programs from slowing down the games, web browsers, or work tools you have open right now.
Open Task Manager , select the desired process on the Processes tab, and click the Efficiency mode button or right-click and choose Efficiency mode. This limits background app resource consumption for better performance.
Why use Efficiency Mode?
Windows 11 Efficiency mode helps your PC run faster and preserves battery life by throttling apps that consume excessive power.
What happens when you are done?
Once enabled, the chosen application runs with lower priority. This ensures active foreground tasks receive the CPU’s full attention, leading to better overall responsiveness.
How to enable or disable Efficiency Mode
You can turn on Windows 11 efficiency mode in Task Manager to slow down resource-heavy apps and save battery life. To do this, press Ctrl+Shift+Esc, open the Processes tab, find the app you want to limit, and click the leaf icon at the top of the window to turn the feature on or off.
- Open the Task Manager . You can do this by pressing Ctrl+Shift+Esc on your keyboard.
- Click on the Processes tab on the left side of the window.
There are two ways to turn this feature on or off:
- Method 1: Select the app or process from the list. Click the Efficiency mode button located in the top command bar.
- Method 2: Right-click on the specific app or process and select Efficiency mode from the menu that appears.
Leave these alone, as limiting them can cause system instability.
A confirmation window appears upon enabling the feature. Click Turn on Efficiency mode to confirm the change.
Note: Administrator privileges may be required for this action, depending on user account settings.
Technical Deep Dive: EcoQoS and CPU Throttling
EcoQoS (Efficiency Quality of Service, a feature that manages background resource priority) identifies non-urgent background tasks and throttles them slightly to benefit active applications.
Comparison: Efficiency Mode vs. Power Saver
| Feature | Efficiency Mode | Power Saver Mode |
|---|---|---|
| Scope | Per-process | System-wide |
| Goal | Improve responsiveness | Extend battery life |
| Mechanism | EcoQoS / Priority | Voltage / Frequency scaling |
Advanced: Registry Editor Modifications
Persistent issues with Efficiency Mode require modifying process settings through the Registry Editor (a powerful tool for managing Windows settings), though caution is mandatory here.
Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options to check process settings. Administrator privileges are needed for this.
Summary
Windows 11 Efficiency Mode remains a handy feature that limits demanding apps to accelerate your PC and conserve battery life.
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About the Author
Richard
Tech Writer, IT Professional
Richard is a writer at Geek Rewind who turns complex IT tasks into clear, step-by-step guides. He draws on years of hands-on experience in system administration and enterprise IT operations, focusing on Windows, Linux and WordPress: the problems people actually run into, and the fixes that work. His server and WordPress guides come from systems he runs himself. Richard builds and maintains the platform behind Geek Rewind, from its Ubuntu servers and Nginx configuration to its custom WordPress plugins. Many new tutorials start with readers' questions, and he's always glad to answer them in the comments.
No it does not ! Doesn’t even work properly ! If i were in charge at MS development i fire all the “moorons” who invented this crap of feature immediately ! It throttles app to background even if not active so settings do not work at all on working foreground app ! No guidance that i found on net is working to user benefit ! Throatless Excel to to the point to choke and freeze, so basically MS throttles its own flagship Office App on performance power hardware ! Completely useless and robing my nerves sky high ! Its a MS cluster fuck to all the users out there coz cant be disabled neither removed from the system completely ! U re better of with Win10 or go-to Linux. I have newer heard Linux to throttle app.
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