ТЕМА: Activate Windows 10 after Reinstalling Windows 10?

During reinstallation, you will be asked to enter a product key. When you enter your product key, you will have an activated edition of Windows 10.

If you completed the setup and did not enter your product key, you can still enter your product key. Click the Start button on PC, and then click Activation > Update product key > Change product key.

Visit Here: getassist.net/how-to-activate-windows-10/