you have to reinstall windows
we are sorry to hear this
have you tried reinstalling your drivers?
lower your res, lower video options idk
if u wanna keep your settings, maybe not possible anymore?
im not playing cs rn so idk what update happened
maybe your setup is getting old?
INSHALLAH deleting system 32 might help
mens make sure you verify game files on steam and reinstall if you need to (csgo isnt big, just write down your settings and crosshair information if you are worried that might change). Usually these things are fixed, but if they don't, try contacting steam or asking for help on something like reddit.
What were your averages before? And what are your specs?