The Challenge
Many Windows Store apps run under a shared process calledApplicationFrameHost.exe. Blocking this process would block all Store apps, which is usually too aggressive.
Recommended Approach: Window Title Matching

Using window title matching to block a UWP app
- Open the Store app you want to block
- Use the Helper Tool to see its window title
- In your plan, add the app by window title rather than process name
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Some Store Apps Have Unique Processes
Not all Store apps useApplicationFrameHost.exe. Some have their own process names:
- Use the Helper Tool or Task Manager to check
- If the app has a unique process name, you can block by process as normal
Block All Store Apps
If you want to block every Store app:- Add
ApplicationFrameHost.exeas a blocked process - Add exceptions by whitelisting specific window titles you need (e.g., Calculator, Settings)