I've had this PC since 2016 when I activated the 100% genuine, factory sealed, copy of Win7 Pro 64. No problems since then in this respect until earlier today.
Out of the blue I get a pop-up saying this 6 years old fully updated by MS until Win7 supported ended is now, mysteriously not genuine (Build 7601).
Pretty sure this must be caused by the fact that about a month ago I replaced the almost full 128GB SSD originally fitted with a 500GB one cloned from that.
Nothing untoward reported after the replacement; Windows continued indicating on the System Info screen that the licence and OS are just as before genuine and activated. I even had the last monthly Windows Malicious Software Revoval tool offered and installed and why would that happen if it was not a valid Windows OS.
Problem is that as the reported issue is that Windows is not a genuine copy the option to (re)activate it is missing. I was therefore sent on a merry-go-round of unhelpful "help" pages online at MS until apparently opening some sort of ticket with customer 'phone support from which I'm waiting to get a response.
Question is what do you do in such circumstances? What is the best course of action?
Even more worrying is that I updated my other (Win7 Pro) PC a few weeks later in the same way. At this time there is no indication of any trouble, Windows is shown as valid and activated but I'm really concerned I'm go through this again with that too some time soon.