OMG,
 
After installing Win 10 all audio is about a step fast with increased tempo. This includes multitrack, 2 track and even playing a youtube file that was not even downloaded. Anybody have ideas?

Make sure you have the right driver for your audio interface, check the sample rate setting, etc.
Maybe Windows used a class driver rather than the one that your interface usually uses.
Sounds like the OS and the hardware are in disagreement over the rate resulting in a pitch shift.  Like if 44.1K audio is played back at 48K.
 
Keith

Thanks Keith that was it. Oh.....how about the NCH software which came with Win-10. Should I uninstall that? Any issues reported with that?