Microsoft designed an update specifically to make Vista capable of detecting what the software giant referred to as activation exploits. The refresh is served to Vista clients worldwide via Windows Update, with no user intervention, provided that the WU settings are set to automatic updating. Microsoft failed to reveal the specific Vista activation cracks that were targeted by the KB940510 update.
“this update for Windows Vista detects activation exploits that may be present on a system. An activation exploit bypasses licensing and activation. This behavior allows for counterfeit copies of Windows Vista to run without ever having to be activated. Activation exploits make alterations to key Windows system files. These activation exploits affect both system stability and security.”
“If activation exploits are detected, you will be provided a link to a Web site that describes how you can remove the activation exploits. When the activation exploits are removed, you may be asked to use a valid product key to activate your copy of Windows. If you do not want to remove the activation exploits, Windows may disable the activation exploits, and then ask you to use a valid product key to activate Windows,” Microsoft informed.