Question HELP PC keeps crashing

[halo9004]

I've been trying to fix this problem for months now and this is the first time i've had a problem that i cant fix so im finally posting on a forum haha, but anyway I have a problem with my graphics card where if I switch resolutions to anything that isnt native my pc crashes. I checked my RAM but there appeared to be no problem. I actually fixed my problem for a day after cleaning up my driver installation and reinstalling them but upon restarting my computer I ended up with the same problem once again. At this point i've exhausted all my options. Thank you for the help in future reference!!

 

[rgd1101]

full system spec? include make and model of the psu
malware scan the system?