What are some of the common causes of WGA validation failure for Windows Vista systems?
A customer often has no idea that a copy of Windows is counterfeit. WGA validation failure usually occurs when a customer purchases a new computer from a dishonest business that charges for genuine software but installs a pirated copy of Windows. The customer has paid for a copy of Windows, but is actually running pirated software. Microsoft provides assistance, including, in some cases, a complimentary replacement copy for those who experience validation issues.