Fix Windows Activation Service High CPU Usage on Windows 10 - Remote Desktop Error 0x4: Cache Cleanup Guide-Fix Windows 11 Not Activated After Changing Parts
Before changing system settings, save your work and note the exact error text so you can compare results after each step.
Extra verification checklist
- Restart the affected app after changing permissions or configuration files.
- Test the same workflow in a clean browser profile or a temporary user account.
- Compare the result on another network if the error may be connection related.