If you still can, roll Windows back to your last OS. Win10 is still not ready yet, sadly... Many Windows 8 users were expecting this to be the second coming with a revised start menu but it has bought more security and legacy issues than you would expect for an OS with such a long open beta dev cycle.

I don't want to sound like a fanboy, to be clear; XP and 7 was great, vista got better, and 8 became ok. 10 is still not ready.