If you have a valid Windows license, you can find the activation key through Windows Terminal or Command Prompt and re-enter it to activate your Windows license again.

Learn how to use SLMGR or Software Licensing Management Tool to Install, Uninstall, Activate, View, Extend Windows License.

I walk through how I activate Windows 11 the easy way. First, I open the settings from the desktop. Then I go to the system section and scroll down to find the activation tab. If Windows 11 isn’t ...

Unable to upgrade your edition We can’t activate Windows on this device because you don’t have a valid license or product key.