The method used to activate Windows for single-user licenses starting with Windows XP and Windows Server 2003. Bulk licenses to companies do not contain Windows Product Activation (WPA).

Looking to install, activate, or update Windows 11? Here's everything you need to know. If you are an avid Windows user, you ...

Before you proceed any further, run the Windows Activation Troubleshooter first. Also, verify that the product key you’re trying to use for the activation is genuine and the correct product key ...