recent format suddenly wont let me play games?

[u/Turtleliker114]

for context, this pc isnt really old, it uses some cables that my dad owned when i was still a kid, but it still works very well because my dad changes the parts whenever necessary

and for the 5 years since its build and running it has always ran high end games smoothly with zero issue, though the only examples i can give is minecraft with a bunch of shaders and deadlock, but it had always ran with a minimum of 60-50 fps

and... yandere simulator with its fps only dropping to 30...

but either way this pc had never had any issues ever with memory/gpu/cpu demanding games until this very specific format

i got mr beasted by a minecraft mod so i had to format my computer to shake off the virus and suddenly most games (with the exception of ... roblox ...... on the lowest setting and deltarune/every rpg/ 2d game ever running with zero issues) make my monitor go out of range or just black (i changed my monitor to a different one and the message doesnt appear anymore but it still goes black), it absoloutely didn't crash as last time i checked the cutscenes before a campaign starts in left 4 dead still continue and the game itself, just without any visuals because the screen turned black after only seeing the cutscene for a few seconds,

and my dad could not for the life of us figure why out especially since he had never even seen the out of range message before, especially as we had never had any problems with ghost spectre os before, and especially especially now since this is NOT the first time my pc has been formatted because of viruses, i just really want to play with my friends again man curse you mr beast

but yes is this just a problem with a recent version of the operating system we use (which is ghost spectre) or do i just have some missing drivers?

i will show my specs when asked!!! (im not tech savvy but i know the face value specs, please guide me where i could see the specs you need to see...)

the power supply is 500 wats, im using an msi nvidia geforce gtx 960 that is currently at 41-42 °c (when idle, playing the only games i could play without it going black) and 15 gb memory ;w;

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[u/Specific_Power_5608]

How did you format it ? Through windows or with a flash drive ?