Windows 10: Unable to activate Windows 10 transfer to new PC Retail version

My question is identical to the one in the thread below. Same screenshots and error code. 0x803FABB8https://answers.microsoft.com/en-us/windows/forum/all/error-0x803fabb8/4d860084-1db6-454c-a66e-ff42944a32f4Old PC had Windows 10 Home upgraded from Windows 7 RetailMicrosoft support agent is telling me that my license cannot be transferred to new PCBut many articles suggest that retail licenses can be transferred even if free upgrade from Win 7 or 8What confuses me is that I have another Windows 10 PC which I built in 2019 re-activating a Windows 10 license from another old Win 7 retail

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Transferring Windows 10 to New PC Activation

It depends on how Windows 10 was originally configured on your computer.

If its a full retail store bought license online or offline, it is transferable to a new computer or motherboard.

If its the free upgrade from a retail store bought Windows 7 or Windows 8 license, it is transferable to a new computer or motherboard.

If its the free upgrade from a OEM preinstalled Windows 7 or Windows 8 license, it is NOT transferable to a new computer or motherboard.

Learn more about transferring your license:

• How to Transfer your Windows 10 License to a New Computer

If its a retail license, learn how to reactivate:

• Activate Your Windows 10 License via Microsoft Chat Support

 

transfer windows 10 to new pc?

It depends on how Windows 10 was originally configured on your computer.

If its a full retail store bought license online or offline, it is transferable to a new computer or motherboard.

If its the free upgrade from a retail store bought Windows 7 or Windows 8 license, it is transferable to a new computer or motherboard.

If its the free upgrade from a OEM preinstalled Windows 7 or Windows 8 license, it is NOT transferable to a new computer or motherboard.

Learn more about transferring your license:

• How to Transfer your Windows 10 License to a New Computer

If its a retail license, learn how to reactivate:

• Activate Your Windows 10 License via Microsoft Chat Support

 

Building a new rig to transfer Windows 10 but not sure if it's OEM or Retail

If you upgraded from a retail box copy Windows 7, it has retail transfer rights.

Use the following to see if you can find the original Windows 7 key. If you can't find the original Windows 7 key, you won't be able to transfer it.

Step 1: How to Find Your Product Key After Upgrading to Windows 10

Step 2:

• How to Transfer your Windows 10 License to a New Computer