XP keep asking for reactivation

[TrippinJedi]

I recently upgraded my kids system with a new motherboard, i reformatted the drive and loaded the OS, and when i got it connected to the net i activated it. after that i loaded my anitvirus program, PandaIS2006, things seemed to be going well, well im connected to the net via USB wifi adaptor so i decided to disable the onboard lan in the BIOS. and then the issue begins, i flags me for reactivation because of hardware change, so i call and get it reactivated and where all set...Not!.. I wake up this am and fire it up and it flags me again for a reactivation due to hardware change, but ofcourse nothing has been changed. any ideas? should i wipe it clean again and do it over?

[EzyStvy]

Couple of possibilities:

Repeatedly Prompted to Complete Activation for Windows XP Media Center Edition After You Enter Product Key
http://support.microsoft.com/kb/811632/en-us

System Information Reports that the Operating System is Pending Activation for Limited and Guest Users
http://support.microsoft.com/kb/817025/en-us

[TrippinJedi]

thanks, i did reactivate it again, we will see if it sticks, as far as one of the methods used in the first link, i have downloaded and installed all updates that are available from windows update