1. Enter "Control Panel" in the search box that comes with win 10, and click "Control Panel" in the search results interface to enter the control panel interface.
2. Click "System and Security" in the control panel to enter the system and security interface, and then click "System" to query the basic information of the computer.
3. Click Next in the system interface.
4. Enter the product key input interface. We enter the product key VK7JG-NPHTM-C97JM-9MPGT-3V66T of win 10, and click OK.
5. After the key is passed, you will be prompted to "upgrade your Windows version". Click "Start Upgrade" to enter the upgrade preparation interface, and wait a moment. A successful upgrade will display "Version Upgrade Complete".
6. When you enter the control panel, you can see that it is the professional version of win 10, and it has been activated from the original inactive state.