I updated my DAW to Windows 10, 64 bit and it is working great!
I updated to Win 10 from Windows 8.1 and then performed a fresh install of Windows 10 from my USB drive so it could format the HD and give me a clean install. I re-installed Sonar X3e and all of my purchased plugins and soft synths. I first added a new MOBO and a new processor and some ram and then performed the update, now my DAW is working nice and smooth.
My Roland Octa-Capture used the same drivers from Windows 8.1 also my old Legacy M-Audio Radium 49 keyboard, My Trigger Finger pad controller, my Motu Micro lite and my Mackie Universal Controller all works under Win 10 with their Windows 8 or older drivers.
No problems here.