Windows 10: Unable to upgrade Windows 11 Home to 11 Pro

Hello - I have a laptop with Windows 11 Home and I need to upgrade it to Windows 11 Pro to connect to a local domain. I can not use the pro upgrade from the Microsoft Store for $99 as that requires a Microsoft account and this is for a business and I don't want the upgrade being linked to any particular Microsoft account.I purchased an OEM Windows 11 Pro license and entered the key in the "Change Product Key" link and it does not accept it.I then reloaded the laptop by booting to the Windows 11 Pro DVD and after completion it still only shows Windows 11 Home. The process never asked for the

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Upgrading to windows 11

I have a few questions about windows 11...

1. How many GB it is? when my pc suggested the upgrade yesterday, it said it's about 4GB just want to be sure.
   
2. I'm using a windows 10 pro so if I upgrade, will it upgrade to a windows 11 pro?
   

 

Windows 11 Home to Pro upgrade

Want to upgrade 11 Home to 11 Pro. Tried download, but apparently files transferred were for 11 Enterprise. This will not activate; error is "invalid digital license or product key". This is on a new Surface. How to proceed?

Can withdraw/delete this. The suggestion to downgrade - listed below - with a 'fake' windows 10 key works.

 

Difficulty upgrading to windows 11

Okay Thanks! but I have a few more questions...

1. Do you know how many GB it is? when my pc suggested the upgrade yesterday, it said it's about 4GB just want to be sure.
   
2. I'm using a windows 10 pro so if I upgrade, will it upgrade to a windows 11 pro?