I was successful with full recovery in 8.1.......and shut off 'windows update' immediately there after....never had one problem. 8 months later, now 3 weeks ago, I downloaded and installed the 'new' Windows 10. So far everything works 100%. But.....I see now with 10, I no longer have the option to shut off updates, even if I wanted to do so. I did find a way in to see updates installed, but no other means to manipulate it. With no Windows 8.1 or 10 greeting, or departure sounds...like XP, 2000, 98,95 did have, the 8.1 and 10 experience seems less personable and without human character. If Windows 10 becomes problematic, (knock-on wood it doesn't) A big Macintosh Apple might taste sweet.....I miss XP.