I wanted to add a note to the above answer. However, I then ran slui.exe /upk to uninstall the Product Key, and then tried changepk.exe again, after rebooting the OOBE was now for Windows 11 Pro and I could create a local user and domain join. I ran slui.exe 0x2a 0xC004F069 and it said This errored with 0xC004F069 and said to run SLUI to get full details. I also tried slmgr.vbs /ipk VK7JG-NPHTM-C97JM-9MPGT-3V66T.

Running changepk.exe /ProductKey VK7JG-NPHTM-C97JM-9MPGT-3V66T (Key for Windows 11 Pro) brought up the 'Preparing for Upgrade' dialogue but then failed with Error Code 0x80070490.I installed Windows 11 Home into a Virtual Machine and tested this using the Generic Keys from this website, this is what I found to get to the steps above: This is not always necessary but I suspect sometimes the Home license will be installed and needs to be removed first. Technically you can open CMD while it's installing Updates but I don't recommend this because it will restart without warning and might interrupt the following process. Once you hit the login screen, press F10 to open CMD. Choose language, keyboard layout, device name etc.

Windows 11 home to pro upgrade cost