A link with a fix:
Hope this helps.
I used OneDrive for Business for a while in 2016, and I stopped using it because I kept getting a pop-up error message:
"OneDrive for Business needs to close because of a hardware or configuration problem.
Error Description: Unspecified error
AssertTag: 0x00cfbaf8" **the assert tag isn't always the same
I have had this popping up for so long now, and I can't figure out how to get rid of it. I have uninstalled OneDrive so I don't know how it can still be popping up.
Thanks for your help