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Currently on build 10240 - but want to fresh install on 29th
I'm currently on build 10240 and I want to do a clean installation on the 29th when Windows 10 is officially released.
I upgraded to Windows 10 via Windows 8.1 update, so will the same key I previously used to activate 8.1 now activate a fresh installation of Windows 10? Or do I have to reinstall 8.1 Pro, then upgrade again to Win10?