I did upgrade from Windows 8.1 to 10. I was having a separate issue that had plagued me for weeks, but was able to solve it, but just last night, before I posted, the computer randomly restarted.

Just had the same thing happen to me. No errors, or anything that would be suspicious.
The Kernel error 41 is just an error that says the computer was shut down with being powered off properly....

I had the exact same thing happening when I was playing GW2.
Turns out that if there is an onboard graphics card as well as an "add-on" graphics card, the 2 don't like to play together. To fix this...