Quote Originally Posted by curious aardvark View Post
worth trying on 8, pretty much all the stuff from the app store runs on that as well as 10.
I went back to the app page to check, and you are right: 3D Scan will run on Windows 8.1. While I was there, I skimmed through the comments again, and noticed on that I had missed before. The grey screen can be caused by setting your camera privacy settings too strongly. I went into my camera settings and allowed 3D Scan to use my camera, and was able to get the app to connect. Yay!

Now to see if I can actually scan something.