Usually, you'd activate Windows 11 (or 10) using the Settings app to enter ... you can also use Command Prompt to activate a Windows license using a KMS (key management services) activation ...

When you try to upgrade your computer to Windows 11/10, you receive Windows Activation error 0xC004F074; then the cause could be due to support version mismatch ...

Microsoft says Windows 11 24H2 has entered the broad deployment phase and is now available to all seekers via Windows Update.