Windows 7 Validation Tool -

Learn more about the technical details of Windows Activation technologies on the official Microsoft Support

This update sets a scheduled task to run every 90 days to re-verify the system's status. windows 7 validation tool

: If validation fails, your desktop background may turn black, and you will receive frequent "This copy of Windows is not genuine" notifications. 2. Official Methods to Validate Learn more about the technical details of Windows