update windows

[greatgranny123_-]

have got the following message come up when I log on,

"since windows was first activated on this computer the hardware on the computer has changed significantly. Due to these changes windows must be reactived within 2 days".

When I say ok I have to follow various instructions, is it ok or is it some sort of scam.

[MarkRae]

Have you, maybe, upgraded the machines graphics card or CPU? That's typically what causes this message, and it's not a scam.

[greatgranny123_-]

thanks markrae for anwer but I havent changed anything on the computer recently. Should I reactivate regardless

[MarkRae]

Have you used the same registration key on other machines? Could somebody else have used it?

See here for lots of discussion about this:
http://www.google.co....225c&biw=1600&bih=809