To upgrade from Windows 11 Home to Windows 11 Professional, you can use a generic product key for the initial upgrade. This key won’t permanently activate Windows; it simply allows you to switch editions to Pro. After that, you can enter the purchased license key to fully activate Windows.

Here’s the process:

1. Go to Settings:

• • Open Settings > System > Activation.

2. Change the product key:

• • Select Change product key and enter the generic key for Windows 11 Professional: VK7JG-NPHTM-C97JM-9MPGT-3V66T.
  • Press Next and follow the instructions. This will initiate the upgrade to the Pro edition.
  • If you get any error on the screen, please disable the internet connection for a moment and repeat this step (2), your PC will automatically restart, once restarted you can reconnect your internet and continue with the following steps.
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          images with possible errors (0x803fa067 0xC004F069)
    

3. Enter your purchased activation key:

• • Once the system has been updated to Windows 11 Pro, go back to Settings > System > Activation.
  • Select Change product key again and enter the purchased Windows 11 Pro license key.
  • Follow the instructions to activate the license.

4. Restart the device if needed:

• • After activation, the system may ask you to restart to apply all changes.
  • Following these steps, you should have Windows 11 Pro activated on your device.