SaltySpice

I'm looking into getting a Cosmos, (very excited!) but as I'm going through the requirements it says Windows 10 is needed. I'm running Windows 8.1 and I was wondering if there's a way to make it work? I don't really want to upgrade my OS, and I know that the Vive and Vive Pro are fine with Windows 7 and up, so I figured i'd ask. I don't want to drop the money if I'm not gonna be able to install it! Any help would be appreciated! Thanks a bunch!