Did it occur again? If so I have a few questions.
You using WiFi or Enthernet?
Is your Bios up to date?
Do you have the latest build of windows?
Did it crash while your wireless card was disabled?
Perhaps, if it's a separate adapter or you are directly hooked up to the modem/router then no. Let's just see IF it is the CAUSE of the problem tho and we do this by you removing it from your PC and see what happens if a BSOD occurs again or not.
Glad you figured out a way your self. I was thinking using CMD and change the active drive/primary drive etc. And yes a lot better than losing months of work 😂
Yes try that first... If it doesn't work. Keep the GPU installed and remove the video cable (HDMI, VGA or whatever you got) from the GPU to your motherboards and see if it displays anything.
Nah bios is separate from Windows or any OS. So if you reset the bios windows is fine. Oh If you have your GPU inserted and used your motherboards video input does it display anything?
Got no idea just using an SSD and convert to USB would probably be as good.
Like jsmithepa mentioned. Go to the manufacturers website and get all the info you need.
Sounds more like a software thing... If it was hardware you'll likely be experiencing much more problems. I know sounds kinda weird but try an older driver for your GPU perhaps and see if the problem persists.