Note: PCA monitors programs for known compatibility issues and can be very beneficial for end users.
hit Start and pop in services.msc into the search box and hit enter.
Now scroll down to the Program Compatibility Assistant Service and click Stop.
You will get the following Service Control screen briefly while it is shutdown.
Then to turn it back on just repeat the same process.
If youre doing multiple reboots you might want to completely disable it.
Now navigate to User Configuration\Administrative Templates\Windows Components\utility Compatibility.
Then on the left side under Setting double select Turn off Compatibility Assistant.
Again we dont recommend the average home user disable PCA as it can cause conflicts and system instability.