Vista SP1 upgrades to Vista activation and product keys
Windows Vista has introduced a tool for managing product keys, compared to predecessors in Windows XP, which shows you how a machine can be used to display a computer from a product key to an activation state. Windows software Licensing management tool can be implemented by entering the "slmg.vbs" command, which enables users to activate products and display Vista activation status, as well as install or remove product keys. As a result, entering "SLMGR.VBS-UPK" will cause the Vista operating system to lose all licensing information, which means the system is inactive and will go into functional restriction mode.
"Once you have run the SLMGR.VBS–UPK command on a vista machine, you cannot view the system licensing information," Microsoft cautions. In addition, the Windows Vista activation status is also lost. If the user uses the Slmgr.vbs–dli or SLMGR.VBS–DLV command to view product licensing information, you will find that the system does not return any results and an error message may appear: ' Your copy of Windows is not active. Now click here to activate Windows. ' When you restart your computer, you will be asked to re-enter the product key and the system will enter the functional limit mode. ”
Although in the Vista SP1 that will be released, the activation status is lost when the user enters the "slmgr.vbs-upk" command, but the operating system no longer enters the functional restriction mode. This is because Microsoft has canceled the feature restriction mode. As a result, users don't need to be nervous even if they accidentally enter the "SLMGR.VBS-UPK" command, all they have to do is re-enter the product key and reactivate Vista.