WGA Notifications updated for Windows XP Professional
This week Microsoft is preparing to update Windows Genuine Advantage (WGA) Notifications for Windows XP. 
This new version includes the usual updates to validation that improve WGA’s ability to detect invalid product keys and other attempts to avoid product activation. Microsoft has focused on including the latest validation information, i.e. recently stolen or misused product keys, for the Professional edition because Windows XP Professional is the most often counterfeited version of XP.
Customers who installed the last update will simply have their validation information updated without needing to go through the install process again. Once the update has been downloaded by Automatic Updates after the next login or reboot the install wizard will be presented to the user and they will be able to choose whether to install the update. The tweaks appear to strictly detection-related and WGA should still perform the same way as it did in the past.
If you want to get the update early, it is available on the Microsoft Download Center (1.5MB). The version number is 1.9.0040.0.
