>>264852642
https://store.steampowered.com/app/1068820/OVR_Toolkit/
>Please note that OVR Toolkit *only* supports Windows 10! Not Windows 7 or Windows 8/8.1!

https://developer.oculus.com/documentation/pcsdk/latest/concepts/dg-dash/
> You can still use Windows 7 and Windows 8 and enjoy the core functionality of Rift Core 2.0, including the new Dash system menu and Oculus Home. However, you won’t be able to use features like Oculus Desktop for virtual computing, and Dash won’t be able to run as an overlay on top of your currently running VR application.

I'm no microsoft shill, I try to avoid using Windows as much as I can. But if I'm forced to might as well use to latest supported version.