How to Activate Windows Using a Product Key

Step 1 – Confirm your Windows edition matches your product key
Before entering the key, make sure your installed edition matches what the key is intended for (for example, Home vs Pro).

To check your edition:

• Go to Settings > System > About

• Look for Windows specifications > Edition

Step 2 – Open the Activation page

• Go to Settings

• Select System

• Click Activation

Step 3 – Enter your product key

• Click Change product key (or Update product key)

• Enter your 25-character product key

• Click Next, then follow the prompts

  

• Step 4 – Make sure your PC is online
  Activation typically requires an internet connection. If you’re on Wi-Fi, ensure it’s connected. If you use Ethernet, confirm the cable is plugged in and working.

  Step 5 – Restart if Windows asks you to
  Some systems may request a restart after the key is accepted. If prompted, restart your PC and re-check activation status afterward.

  Step 6 – Confirm activation status
  After completing the steps above:

  • Return to Settings > System > Activation

  • Verify the status shows Active (or similar wording)

  If activation doesn’t complete successfully, save the exact error message or code shown on the screen—this helps support resolve the issue faster.

Troubleshooting Tips

• Upgrading from Home to Pro?
  You can find a full guide here:
  How to Upgrade from Windows to Pro Version