(Quick public dump so I can find the tool link again easily)
Works for Windows 8, worked for Windows 8.1 Preview, no reason to think it won’t work for Windows 8.1 RTM, or Windows Server 2012 R2 etc.
Good if you’re planning a clean installation; otherwise, simply double-clicking the ISO is probably enough to do the upgrade as of Windows 8, which can mount ISOs and VHDs from a double-click.
Nice post thanks
Like the sense of humour too....
Thanks, that's a handy tool by MS