Limiting CPU usage on Windows 11 can help you manage system performance and prevent applications from overwhelming your computer. By following the steps below, you can set limits on how much CPU different applications use, leading to a smoother computing experience.
How to Limit CPU Usage on Windows 11
By following these steps, you’ll be able to set limits on how much of your CPU is used by various applications. This can help improve your overall system performance and prioritize important tasks.
Step 1: Open Task Manager
Press Ctrl + Shift + Esc to open the Task Manager.
The Task Manager is your go-to tool for managing running applications and monitoring system performance. It provides detailed information about CPU usage, memory consumption, and more.
Step 2: Go to the Details Tab
Click on the ‘Details’ tab to see a list of all running processes.
This tab shows you every process running on your system, along with how much CPU each one is using. This information is crucial for identifying which applications are consuming the most resources.
Step 3: Right-Click the Process
Right-click on the process you want to limit and select ‘Set affinity’.
The ‘Set affinity’ option allows you to specify which CPU cores the process can use. By limiting a process to fewer cores, you can reduce its total CPU usage.
Step 4: Select CPU Cores
Check or uncheck the CPU cores to limit usage and click ‘OK’.
Selecting fewer cores will effectively limit how much of your CPU the application can use. For example, if you have a quad-core CPU and uncheck two cores, the application will only use half the CPU’s capacity.
Step 5: Use Power Options
Open ‘Settings’ > ‘System’ > ‘Power & sleep’ > ‘Additional power settings’ and select a power plan.
The power plan you choose can also affect CPU usage. Switching to a balanced or power-saving plan can help reduce CPU consumption across all applications.
After completing these steps, your CPU usage should be more balanced and manageable. Your computer will allocate resources more efficiently, resulting in improved performance for essential tasks.
Tips for Limiting CPU Usage on Windows 11
- Use High-Efficiency Apps: Opt for applications known for their efficiency to reduce CPU load.
- Close Unnecessary Programs: Shutdown programs you’re not actively using to free up CPU resources.
- Adjust Startup Programs: Disable programs that auto-start to speed up boot time and reduce initial CPU usage.
- Update Software: Ensure all applications are up to date for optimal performance.
- Regular Maintenance: Regularly scan for malware and perform disk cleanups to keep the system running smoothly.
Frequently Asked Questions
How do I know which applications are using the most CPU?
Open Task Manager and check the ‘Processes’ tab. It lists all running applications along with their CPU usage.
Can limiting CPU usage improve battery life?
Yes, limiting CPU usage can reduce power consumption, which can extend battery life on laptops.
Is setting CPU affinity safe?
Yes, setting CPU affinity is safe. It simply allocates specific CPU cores to a process, which can help balance system performance.
Can I revert the CPU affinity settings?
Yes, you can easily revert the settings by following the same steps and reselecting all CPU cores.
Does Windows 11 have built-in tools to limit CPU usage?
Yes, Task Manager and Power Options are built-in tools that can help you manage and limit CPU usage.
Summary of Steps
- Open Task Manager
- Go to the Details Tab
- Right-Click the Process
- Select CPU Cores
- Use Power Options
Conclusion
Managing CPU usage on Windows 11 can significantly improve your computer’s performance and ensure that essential tasks receive the resources they need. By using built-in tools like Task Manager and adjusting power settings, you can effectively limit how much CPU various applications consume. Remember, keeping your system updated and running routine maintenance can also contribute to a smoother experience.
If you’re constantly finding your CPU maxed out, consider these tips and steps to regain control. For further reading, explore more advanced system optimization techniques or consult Microsoft’s official documentation on managing CPU usage. Now, why not take a few minutes to try these steps and see how much they can improve your computer’s performance?

Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.