I'm running Windows 10 on a computer I built back in 2014. Originally the computer crashed hard; friend did a wrong move, game froze, crashed, then a “Blue Screen of Death.” Followed by the computer not recognizing a bootable drive installed. I was able to get everything back and running but often the drive wouldn’t boot and I chalked it up to my SSD finally dying.
I then replaced it with another SSD, fresh install of Windows and worked on getting all of my programs back on. I have yet to actually shut my computer down, it keeps freezing getting the “Blue Screen of Death” when doing simple tasks (like run Steam and updating my graphics drivers). I’ve been trying to run Windows Update and it keeps halting on installing the latest (I think. The 2020-02 Cumulative). It usually freezes in the teens of installing. This is from the Windows Update dialog, not when I am restarting the computer. The mouse still responds but it's like Windows Explorer crashed. Can’t click on anything nor Alt+Tab, Ctrl+Alt+Del, or Ctrl+Shift+Esc work.
I figured it was a bad Windows install so I reinstalled it. Same issue. Figured it’s a hardware issue so I ran the Windows Memory Diagnostic tool and nothing turned up.
I have no idea what could be wrong. The obvious and easiest fix is to build a new one, but can't really afford that.