If Windows Vista requests activation unexpectedly On rare occasions, you may be prompted to activate Windows Vista on a computer that did not previously require Windows Vista activation or was already activated successfully. For example, this may occur on a computer where Windows Vista was preinstalled by an OEM or Volume Licensing installation and major hardware changes have occurred, such as upgrading the hard disk and memory at the same time.
If you are prompted to reactivate Windows Vista, you can do so by using the Windows Activation Wizard:
- Click Start Collapse this imageExpand this image the Start button , and then click Computer.
Click System properties on the toolbar, and then click Click here to activate Windows now in the Windows activation area.
Collapse this imageExpand this image User Access Control permission If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
- Select the Windows Vista activation method that you want, and then follow the instructions.
To prevent this problem in the future, you should obtain the latest service pack for your installed version of Windows Vista, either through automatic updates or direct download.
To update Windows Vista and prevent this Activation problem from reoccurring:
- Click Start Collapse this imageExpand this image the Start button , click All Programs, and then click Windows Update.
- Click Check for updates.
- As soon as Windows Vista has found the updates, click the Install updates button.