I'm helping Pas through Skype, but here's what worked for me:
- Remove all existing drivers using THIS. Allow it to do the things it wants to do like reboot in safe mode etc. It's easy and automatic.
- Install THIS. NVIDIA's GPU panel. It'll detect your GPU and install the Windows 10 driver.
My thoughts on Windows 10? It's great. Things feel smoother, faster, the layout makes sense, and the art direction's much improved. I like all the new icons.