I recently had a hard drive crash, so I really had no choice but to go to Win10.
Actually, I'm enjoying this version of Windoze. However, I did experience an issue with turning my desktop off using various means (Alt F4, pull down power settings, etc.) -- I would turn it off and it would start back up. Eventually I wound up having to hold down the power key to keep it off.
Doing some googling I found that there is a new feature in the Power Settings that allows for a "fast start". If you turn off this feature, it stops the restart:
Control Panel ---> Hardware & Sound ----> Power Options ---->System Settings: Shutdown Settings @ the bottom of the screen. Make sure the box is UNCHECKED. Save & exit.
This has worked for me. YMMV.
Edited by SubMariner, 14 September 2015 - 10:27 AM.