I have been doing computer repair since 1978 on PDP-8 s.
First - nobody can help you. How do you expect folks to help when you do not mention if this is a laptop or desktop? No mention of the OS or motherboard? No mention of the RAM or hard drive size - or - how much space is free on that drive? No mention of how big, or small, the power supply is?
Second - how long ago did this start? What did you do immediately before this all started? I ask because that is probably what has triggered your issues. Consider this - if your PS was too small and on the brink of causing a crash - installing something as simply as a nicer gaming mouse could be the straw that broke the back. Tipped things over the edge.
Third - stop tying to play technician. Unless you have an ESD safe work bench and proper static free wrist straps - don t be touching anything inside the computer or moving things - stop touching! You will just make things worse. Bad enough you have a problem now - it will cost you 10X more to have this fixed if someone has to figure out two or more problems.
Do this:
1. add up the wattage of your mobo, GPU, and all the stuff on the computer and verify your PS is big enough. If you have a GPU card and the PS is less than 550 watts - I would suspect the PS is too wimpy.
2. Check your C drive has 5GB-10GB free. I freak out when it gets less than 45GB. You run out of room on that drive you crash.
3. Go to Control Panel>Device Manager>GPU> and look at your video card driver. It should be a recent one from the manufacture and not a generic Microsoft one. Go visit the manufacturer web site and be sure it is the latest one.
4. If the video card driver was fine - follow the manufacture s instructions for finding the firmware version of the GPU and verify you have the latest. If not, down load the firmware and push it into the GPU.
5. Might was well check the BIOS of your mother board. Having older BIOS on the mother board and nice new ones on the GPU can cause crashes. (and vice versa)
6. Check if drive protection is turned on, and if so - then use the Restore command roll your computer back to where it was before all this trouble happened. You might want to do this step first - since if you roll the computer back and this helps..... you will have to re-install the drivers you already did again.
While you are in Device Manager - take a peek at your hardware tree. Nothing should have a yellow flag or be unhappy - you see anything flagged or unhappy - you need to fix it.
Good Luck!!