I had the same issue, I removed 16.2 and ran DDU then reinstalled 16.2 and it was fixed..
if its the same issue has mine just after Windows 10 logo the screen would remain black screen?
This isn't an Overclock issue its a driver issue I dont overclock my GPU.
I run DDU everytime i upgrade m8, ive never had a blackscreen at stock volts. Doesnt suprise me that you were getting them though without using DDU, i remember when i upgraded to win10 the first time, was blackscreen central.

A clean install stopped all that though, i dont think win10 likes it when ya install new drivers over old ones.