What is validation ?
Validation is an anti-piracy technology that confirms during ongoing use that your activation status is valid and your product key has not been compromised since it was activated. These technologies are designed to help Microsoft make software piracy harder and to help protect consumers and businesses from the risks of counterfeit software.
Validation checks a KML file against a formal Standard. It performs a similar function to spell checking and proofreading writing for grammar and syntax errors. Validation, however, is much more exact because the Standard is a precisely-specified structure, not a human-defined natural language. To validate specifically means to check against the requirements and recommendations of a particular Standard using a set of tests derived from that Standard.
To help customers gain the assurance that they are using genuine Windows software, Microsoft will ask users to validate their Windows operating system software when requesting a genuine Windows download from the Microsoft Download Center or Windows Update. Validation is a quick and easy-to-use process that enables you to verify that your copy of Microsoft Windows is genuine. Microsoft values the privacy of our customers, and does not collect any personal information during the process that can be used to identify you or contact you.