Windows 10 makes it extremely easy to upgrade from one version to the other without any need to re-install or run an upgrade setup. For example if you want to upgrade from Windows 10 Pro to Windows 10 Enterprise, all you have to do is to change the product key for Windows activation, following these steps
Enter the new product key – In this case I’ve used my Windows 10 Enterprise MSDN key. Soon after the new key is validated you’ll be asked to confirm the upgrade process.
The preparing for upgrade screen will show. Basically you’ve nothing else to do but to wait for the process to complete. Note however that your PC will probably restart once or twice during the upgrade.