Windows 10: Windows 11 home single language 24H2 OEM not upgrade in pro edition

Hello,I am New laptop purchase from LENOVOExisting OS was Windows 11 Home Single Language version - 24H2now i am trying for upgrade Windows 11 Pro with generic key i.e VK7JG-NPHTM-C97JM-9MPGT-3V66Tboth method offline internet & onlineRetail Key purchase from Nexus Key Hub website does not upgrade error showing 0x8007371bplease give me exact solution for upgrade edition

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Cannot change/add language to English after upgrading Windows to 11 Pro in my single language Windows 11 Home edition.

I have a Chinese language Windows 11 Single language edition. I understand from previous posts that upgrading to Windows 11 Pro will solve that.

I have upgraded to Windows 11 pro by paying the additional money. But still, in the language options, I do not see any other language other than Chinese. I tried adding additional languages, but that doesn't seem to be solving the problem.

 

How to properly upgrade windows 11 Home single language edition to windows 11 pro and activate it?

I have bought a Laptop with pre-installed windows 11 Home single language (digital license) edition (activated).

I want to upgrade it into windows 11 pro then I buy from Microsoft Partners Authorized, and I got win 11 pro product key.

I change product key using it, then it tell me that windows need to be restarted to upgrade to windows 11 pro. After restart, status of windows is Windows 11 Pro, but not activated.

Please help.

 

how to downgrade windows 11 pro to windows 11 home single language?

I have installed windows 11 pro (i.e. not genuine) which is not activating as I have digital licence for windows 11 home single language edition and troubleshooter says that i will have to go back to home single language edition to activate windows. so, how can I downgrade windows 11 pro to my previous genuine windows 11 home single language edition?