I've tried crashing my install with version 7 by going to the lower video card, changing settings, etc.
Not happening.
I have Windows 10 installed so I guess I'll go ahead and put SH3 and GWX in that and see what happens.
I stayed away from Win 8 and 8.1
One thing you might try if you haven't. After a complete uninstall, restart windows then defrag before you re-install