Been having trouble all day yesterday and now today with audio dropouts, Sonar Platinum crashing and audio saying it's exporting but then the track won't play ever since my computer updated Windows 10 yesterday morning.

u have Win Anniv edition? is this the latest  update a couple of days ago?  I had issues and reinstalled all of Sonar progs after updating to WinAnniv a couple months ago... i've had no issues with the latest update.  i suppose you've done the standard hard reboot after discovering issues?