I understand the main limitation of this disk is that it can't be installed on more than one PC? I've searched MDL but can't find a workaround for this. If there is one could you point me to it. If not, any ideas? Cheers.. edit looking at the other posts on WN8 OEM that have appeared since mine the only workable solution mentioned is the old ring M$ and say you've bought another mobo, etc - please reactivate. I was hoping the bright boys might have found a method which circumvents that. Who wants to talk to M$? But it's early days, the OEM is barely out. I'll buy it and try a few of the RTM approaches on a second PC. TBC.. P.S. 247 views, no replies. Guess I should have added 'Query' to the thread subject.