First enter "Control Panel" in the search box with WIN10, and click "Control Panel" in the search results interface to access the Control Panel interface.
Click "System and Security" in the Control Panel, enter the system and security interface, then click "System", you can query the basic information of the computer.
Click Next in the "system" screen, e.g. (if the version is already activated, click on the Change key below)
Enter the product Key interface, we enter the WIN10 product Key vk7jg-nphtm-c97jm-9mpgt-3v66t (of course, there are many keys on the internet to find their own), click OK
After the key is passed, you will be reminded to "upgrade your Windows version", click "Start Upgrade", will go to the upgrade preparation interface, wait for a while. A successful upgrade will show "version upgrade completed."
Entering the control panel, you can see that it is already a pro version of Win10, and from its original inactive to active state.
WIN10 Home Edition online upgrade to Win10 Pro