To verify if your Windows activation is genuine, you can use the built-in Windows Activation tool. Go to the Start menu, type “Activation” in the search bar, and select “Activation settings” from the results. This will open the Activation page in Settings where you can see the activation status of your Windows installation. If your copy is genuine, it will say “Windows is activated with a digital license” or “Windows is activated with a product key.” If there are any issues, it will provide information on how to resolve them. Additionally, you can use the command `slmgr /xpr` in Command Prompt to check the activation status and expiration date.