I can safely say Win 10 all Good now. I have been using and testing it for 3 months, I would say for the past 6 weeks its been stable, no viruses or anything actually. No issues over the past 6 weeks to 8 weeks. Go ahead and roll out your images! I would. Only thing I would do for non-Tech users is changed the theme and appearance back to Win 7, or level 1 and 2 support will get hammered with calls with users getting lost. Some training maybe required for very slow users.
I also have Windows 10 mining with the new Algorithm & my Gridseed 5 dual miner. I would like a faster working script 50 GHs at the mo, should be way over 100GHs. Any ideas?