W10 trashed my wifes Lenovo laptop because of a lack of drivers for many things like the camera and SD card reader. She's learned to live with it for now but I'm tempted to put it back to W7. I still have the original HD. 
My 3 desktops are only at most 4 years old so no problem and for my DAW 1709 has fixed a few issues I was having including Sonar crashing. At this point with W10 and Sonar fully up to date all is running smooth again. Prior to Aug everything was fine but the last 2 months have been my worst in my last 6 years.