Method 1: The Registry Tweak & In-Place Downgrade (Keeps Files & Apps)
Go to Settings > Update & Security > Activation . Ensure it says "Windows 10 Pro". how to change windows 10 enterprise ltsc to windows 10 pro
If you don't see the option to change the product key directly, you can use the following method: Method 1: The Registry Tweak & In-Place Downgrade
This is the most reliable method. It will give you a clean, stable, and properly activated copy of Windows 10 Pro, but it does require some preparation. but it does require some preparation.