Are you getting error messages? Reason why you want to go back to previous version? You really don't want to mess with the registry unless you know what you are doing. Doing it wrong can cause major windows problems
@johnb35 - so, initially I was getting
this error message when playing Apex Legends. It would crash my game (but not my computer) and I'd have to restart the application. Tried the usual fixes, updated my graphics drivers and made sure DirectX was the most recent version. Became so frequent that I started looking for a solution and had a friend recommend me
this video. Everything was working out okay for a bit but sure enough, my game started crashing again. Except this time it wouldn't just crash the application, my whole computer would freeze up and I'd have to manually restart.
I saved a backup registry file like the video suggested but when I tried to import I ran into the issue that I mentioned in my OP. Tried deleting the registry files I added (after watch the video) but it gave all my video games a bad stutter. Then tried a system restore and here I am. The files are still in my registry and my game is still crashing and freezing my computer.
Realize I definitely should have done a bit more research before screwing with my registry. Any suggestions?
Edit: The registry folder that I edited currently looks like this
(https://ibb.co/ZhhNyzw). I added "TdrLevel" according to the YouTube video, and the "UnsupportedMonitorModesAllowed" magically appeared. No other issues because Apex Legends crashing. Windows and other games are running fine.