I have a clients computer which was built a year or so back with the incorrect licence key (it did not match up with the CoA on the side of the computer).
They now get the messages appearing on start up and when they log into Windows to say that there copy of Windows may be counterfeit etc…
However I have never actually been on a computer where I have seen these messages and do not know if you know have a genuine licence key how to apply this with out reinstalling the whole os…
Would it be possible for anyone to tell me whether if you are getting these messages you can apply a new licence key without reinstallation ?
Step by step instructions would be great.