Tip & How-To about Microsoft Windows Vista Ultimate Edition
Hi.
This happens when the serial number used on installation is not
recognised as valid, or when the serial had been used on more than one
computer.
If you have installed the system with serial number different from the
one printed on licence sticker, then reinstall the system using a valid
licence number.
If you purchased the computer with system preinstalled , and you are
not sure if system was installed with valid licence, then contact
Microsoft.
You can also temporary get rid of the message doing a system restore to
a date before you got Genuine Microsoft Validation message for the first time.
Regards.
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