Hi Madison, you’ll need to purchase a valid Windows 11 Pro license directly from Microsoft or an authorized reseller. Once you have the license, go to Settings > Update & Security > Activation, select “Change product key,” and enter the new key. The system will then unlock the Pro features without requiring a reinstall. If this is a request coming from your company, confirm with your IT admin whether they provide volume licensing or subscription‑based activation for you.
Hope it helps :)
Harry.