Start -> Run -> devmgmt.msc If you find “Rift DK2” in the Human Interface Devices (HID) section right click and uinstall, then at the top of the list (your computer name) right click and “Scan for new hardware”
chances are with a rolback something has gone awol, also how many monitors do you have are you using dvi or display port, because 970 only supports dvi plus display port or display port and hdmi, i think form memory a mate of mine always had to switch around his plugs.
Assistant Angeli Imperial Custodian (Wangal)
Qui Desiderat pacem, praeparet bellum. | Quis custodiet Ipsos custodes.
Nascentes morimur. | Quando Omni Flunkis Moritati