You could always dual-boot Windows 8 and Windows 10
I have Windows 8, Windows 10 and Ubuntu. Works well for me.This would be best if you really want to use Windows 10.
Win10 has keyloggers built in. I would not go near it for normal work. And when the final comes out, you're trusting that MS has turned them off and that hackers won't turn them back on, or that MS has removed them.