I have just built myself a new PC. I have a valid 8.1 Pro Product key, but no DVD (no optical drive either). I want to install Windows 8.1 Pro from a flash drive, but I can't seem to find any downloadable ISOs. I know Microsoft made the Windows 7 USB DVD Download Tool but I can't find anything similar for Windows 8.1. At the moment it looks like I'll have to install Windows 7 (which I have no product key for) and then upgrade to Windows 8, which is just ridiculous.
Any help?
Any help?