3oddbits, I cannot answer your question and think you should ask MS - doubt it though. There is a 18.7.1 version on AMD's driver DL site. Please try it, may be there for a reason. Good luck and enjoy, John.
I'll give it a try.
Thanks for responding.
Searching the Net turned up other people having this same problem with threading. The catch : XMP / AMP memory.
You have to turn off XMP / AMP memory profiles. The crashing stops then.
This is not a good fix.
The 990FX Chipset && FX-9590 CPU "require" the use of XMP / AMP memory profiles.
The real fix : wipe the drive, reload windows, DO NOT UPDATE.
Update v1083 for Windows 10 is the "problem child".