This was taken from a different forum...
For any Vista Activation problems:
Try this, and take the phone Option, and hold on for a real person to explain to:
Activation FAQs at above link.
1. Click Start, and in the Search box type: slui.exe 4
2. Press ENTER on your Keyboard
3. Select your Country.
4. Take the Phone Activation option, and hold on for a real person.
If locked out except for 3 choices, use the reduced functionality option to get into Windows to do the above Activation.
“Issues relating to the Windows Vista Software Protection Platform - Non-Genuine dialog boxes, validation problems, or Software Licensing Services messages.”
If the information/help supplied does not work, repost your question in this Forum.