Mrs T42 has an HP, several years old now, that was bought new with W7 already installed. She's been working on it constantly, keeping up to date with Word releases and her various translation packages, and installing Windows updates automatically. The latter arrive pretty well in sync with updates to my own W7. She also has the "Install Windows 10" nag icon and the periodic messages.
A couple of months back the machine popped up a message saying "Not genuine Windows 7". We shrugged and said "tough" and she went on working as ever. Just now, though, she tried to install the software that came with her new Garmin Forerunner and it told her that XP was no longer supported.
I can imagine a couple of scenarios:
1. W7 is fake, message is real & Garmin sees what it really is (difficult to believe unless 6 Gb versions of XP exist).
2. W7 is genuine, message is spurious and Garmin is talking through the back of its neck.
Worrying aspect of #1 is what the W7 updates are doing.
Any suggestions?