Windows 11 Set Cpu Affinity Permanently 2021 Jun 2026

Windows 11, like its predecessors, treats CPU affinity as a temporary suggestion, not a rule. By default, the operating system’s scheduler handles core distribution dynamically. But what if you have a specific need? Perhaps you’re running an old game that crashes on multiple cores, or a real-time audio application that needs a dedicated core to avoid pops and crackles.

This is the easiest way for most users. You create a new shortcut that launches the program with a specific "affinity mask". on your desktop and select New > Shortcut . windows 11 set cpu affinity permanently

: Highly recommended for this purpose. You can right-click a running process, select CPU Affinity > Always , and choose your cores. It will re-apply these settings forever. Windows 11, like its predecessors, treats CPU affinity

Customize the values.

Forces heavy tasks onto your "efficient" cores (E-cores) to keep the laptop cool. Perhaps you’re running an old game that crashes

Right-click it and select . Check the boxes for the cores you want the app to use.

If you prefer a script that runs at startup or via Task Scheduler, PowerShell can target specific process names.