I had a few similar issues. Final solution on the worst one was the power supply was killing my SSD, higher than acceptable voltages were getting to the SSD and corrupting/destroying sectors occupied by the operating system....It took 2 separate fixes to finally catch the actual problem. New 3rd SSD new 2nd power supply, problem finally solved with no recurrence. I learned to check the voltages on the power supply cables 1st thing now.

Also had a few issues with bad risers causing BSOD. It only takes one gone bad to throw everything off. (That was the first replace attempt when troubleshooting the above issue)

1 rig also had a similar issue, it would mine fine for a few minutes then the hashrate on one card would drop off to about half then finally down to nothing and then the BSOD popped up. That turned out to be a bad PCIE power cable, the riser was fine. (Yellow and Black Chinese PCIE cables are NOT a good choice)

You'll find it. Good luck.
Chris B.