I have the Windows 8.1 Disc all ready to go and i have a legitimate Windows 8 Professional Upgrade Key + a legitimate WMC Key too should it be needed. Is there a 100% Guaranteed to work method for me to use, to install and activate 8.1 RTM? Thanks in advance guys!
i did a clean install, used the key from OP to start installer, activated with my win 8 upgrade key without issues.
The real question is "Can I post in one of the existing Windows 8.1 activation threads instead of opening a new thread?". You know the answer to that one.