>>Hi all
>>
>>If there is a planned upgrade of the CPU + MB, does the validated Windows need to be unvalidated (if so how?) and then validated after the upgrade?
>>
>>HDD and RAM remains the same.
>>
>>Please advise
>
>You do not need to unvalidate it, if you are installing the OS again you will need to reactivate, if you keep the same OS it will prompt you for reactivation. I've done that several times as I have several computers and I am (was?) always upgrading them, and the worst that happened was that I needed to make a phone call to MicroSoft to reactivate, very short call, I think they asked me what I changed and that was it.

Okay, thanks. That is nice to know.