[SOLVED] i was trying to fix fps in games and i changed a registry

Oct 22, 2019
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So after I tried a fix for fps and there was a file that was called fullscreencustomization.reg , So i run that file and after that evry time i try to switch to another app using alt+tab it lags so much. Does anyone know what can I do?
 
Right-click the file and then choose to edit. A popup may appear warning you about opening the file, just allow it since there's no harm when editing.
Copy and paste the content in your post.

You either have to delete the value/key or reset the value/key to default, but if you want us to help we need to know the content of the reg file.