How to change the Windows 10 Product Key (Home to Pro)

1. Open Settings.
2. Click on Update & security.
3. Click on Activation.
4. Click the Change product key link.
   

1. Type the 25-digit product key for the version of Windows 10 you want.
2. Click Next to complete the process.

If the activation process completes successfully, you'll get the "Windows is activated" message. If it is not please contact support.