Not sure if anyone else hit this, but when I tried doing the F7 to boot Windows 10 with signatures disabled, for my case, it made windows 10 unstable and while I could get to the login prompt and start Win10, once it got to the main screen, I couldn't use file manager, not even the start button. So in my case, I'm guessing there is some leftover other driver from my Win 7 setup (I did an upgrade, not a clean install) that is unsigned that is giving Win 10 grief.
Anyway, just posting this in case anyone else hits this.
Hopefully Roland does post new drivers for the VS100 (what I have) and the VS700 that are Windows 10 compliant as I really like what I see otherwise in Windows 10.