I put Windows 10 on my wife's laptop. It lasted about 15 days and after fixing a glitch ever day, I reverted to Windows 7. It would freeze up and a message would say there was a critical error in the shell infrastructure host. The only remedy was clicking ctrl+alt+del, file magager, check safe mode, restart, repeat ctrl+alt+del, uncheck safe mode, restart ( leaving out a few steps there, but that's the important part).