Windows 10: Unable to activate OEM Licence on Windows 11

Hello support team,We are unable to activate our Windows 10 OEM licenses when transferring them to Windows 11.Step that leads to the error: -We open Powershell as administrator and run the following commands: "$GetDigitalLicence = Get-WmiObject -query 'select * from SoftwareLicensingService'.OA3xOriginalProductKey" after this command we do this one "cscript c:\windows\system32\slmgr.vbs -ipk $GetDigitalLicence" and then we receive the following error "Error 0xC004F050 The software Licensing Service Reported that the product key is invalid".The strange thing is that if we add the key manually

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Windows 10 OEM licence and activation

Hello,

I have several questions the licence and activation:

Can you legally buy used (and decactivated) windows 10 OEM licences and use them with a PC different from what it was supplied with?

Lets assume I bought such licence and the activation was successful on such a machine - does it mean I can continue and legally use the OS?

I read that there was a 'system builder' clause when using OEM licences that lets you transfer said licences to different machies if you take the OEM responsibility on yourself.

If it's not possible with windows 10 OEM is it possible with any other OEM version of windows such as windows 7 or 8?

Thanks,

 

Two OEM licence keys (different Windows versions) on one PC

Hello,
I'm in the process of building another PC and I want to know if it's possible for two versions of Windows to reside next to each other legitimately. I would have windows 7 and 10 as a dual-boot system. So if I buy OEM keys and activate them would one de-activate the other? I know that OEM licence keys are bound to the mobo and are irrevocable. Any advice is greatly appreciated. Thank you.

 

Original OEM Licence Restore?

If i were to create a restore point of my system with my original OEM (OEM Liscence Text: Windows is activated with a digital licence linked to your Microsoft account.) Windows licence but then change it to another Liscence if i were to restore would it give me my old Windows licence back? (The OEM licence.).