Ed Covney said:
I totally agree, but about a month ago, I finally got fed up with a
misbehaving 5-yr old motherboard, so I installed a new one and
also replaced the HDD (320 vs 120 GB) while I was changing
things. I then re-installed XP Pro (orig -slipstreamed to SP2) and
fully expected to have to phone in the activation which completed
in a millisecond ... the preferred way.
So I must suspect MS made a change in the way the h/w hash is
determined. And with all the other post SP2 updates and Office
XP updates, the licenses have been re-validated a dozen or more
times since. Go figure.
If you reinstalled XP and then reactivated afresh, it will almost certainly
have gone through without problem. With all the Windows installations on
the planet, Microsoft just cannot store the hardware hash that goes with
each and every product key for ever. As a result, they only store the
information for a limited period of time (reputed to be 120 days). This
means that if you do a complete reinstall after this period, it will
activate over the internet. This does not affect hardware *changes* on an
existing installation tripping reactivation because that hardware hash is
stored locally as well.
Although this might indicate that you could illicitly make 2 installations
if you do them more than 120 days (or whatever) apart, in practice one will
fail if any attempt is made to perform an update.