How to Activate Windows 11 Pro Product Key (2026 Guide)

Step 1: Check Your Activation Status

1. Open Settings.
2. Go to System → Activation.
3. Check the activation status.

If Windows is not activated, you’ll see an option to enter a product key.

Step 2: Enter Your Windows 11 Pro Product Key

1. Open Settings.
2. Navigate to System → Activation.
3. Click Change Product Key.
4. Enter your 25-character Windows 11 Pro key: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
5. Click Next and then Activate.
6. Ensure your PC is connected to the internet.

Windows should activate automatically if the key is valid and matches the installed edition.

Step 3: Verify Activation

After activation:

1. Go back to Settings → System → Activation.
2. You should see:
3. “Windows is activated” or
   “Windows is activated with a digital license linked to your Microsoft account.