Duncan Lannock

I was able to get Firestorm working (and I suspect the same will apply to the standard viewer) by following the compatibility settings guidelines contained in this post on Microsoft's site: http://answers.microsoft.com/en-us/insider/wiki/insider_wintp-insider_devices/how-to-install-and-update-drivers-in-windows-10/a97bbbd1-9973-4d66-9a5b-291300006293 I was able to run Firestorm after telling Win10 that it was compatible with Win8.