How to Activate Windows 11 Using a Product Key or Digital License?

Activating Windows 11 is essential to unlock all features, ensure system security, and confirm the OS is genuine. You can activate Windows 11 using a product key or a digital license linked to your Microsoft account. During installation, you'll be prompted to enter a product key, which will activate your system automatically if valid. If you skipped activation during setup, you can activate it through the Settings app by navigating to System > Activation, clicking Change product key, and entering your 25-character product key. For users comfortable with the command line, you can activate Windows 11 using the slmgr command in Command Prompt. After a hardware change, such as replacing the motherboard, Windows 11 may require reactivation, which can be done using the Activation Troubleshooter in Settings. If your system is eligible for activation with a digital license, ensure the license is linked to your Microsoft account, and Windows will activate automatically after signing into your Microsoft account.