How to Upgrade Windows 10 Home to Pro via the Windows Store
If you haven’t paid anything for Pro yet, and no one has handed you a copy, the most straightforward way to upgrade is from the Windows Store. Here’s how:
Upgrade From Windows 10 Home to Pro via a Product Key/Digital License
If you have a copy of Windows 10 Pro you should also have a product key (alternately called a license key) to enable Windows 10 Pro. You’ll need this key to replace your Windows Home product key. Here’s how to replace your current product key:
Transferring Windows 10 Pro Upgrade to Another Machine
Since you had a full Windows 10 operating system before the Pro upgrade, you can remove the Pro upgrade from its current machine and then transfer it to another machine. To re-install your original Windows license, which will make the Pro upgrade available to install on another machine:
