How to Upgrade OEM version of Windows 11 Home to Pro

If you are selecting Windows 11 Home to Pro from the BEMO Store

Follow these steps to upgrade OEM version of Windows:

Step 1: Please enter this generic upgrade key into your activation window NW6C2-QMPVW-D7KKK-3GKT6-VCFB2
 
Step 2: After seeing another different error code, please restart your computer
 
Step 3: After reboot, please go back to your activation window and use the license key that you have purchased from us

How to know you're using OEM version of Windows: 

1. Settings > System > Activation

In Product ID, you will see "OEM"