Windows 10: Windows 10 on an assembled PC: how can “slmgr -dlv” show a Partial Product Key different...

long story short: I had to replace the MB of my desktop PC. I took the chance, and I ordered an used MB (same exact old model so that I kept everything else intact) and a new disk (switching to SSD). So I install the new components, I download the ISO from Microsoft's portal, I run the Windows 10 installer from USB and once I'm done I enter the Windows 10 Product Key from my COA sticker. Activation goes successfully, no prob. But if I run "slmgr -dlv" I obtain that's a Volume License and the Partial Product Key shown has nothing to do with what I entered. As this is a generic Asus desktop motherboard, I don't expect to have any embedded OEM Product Key as you would in a classical new laptop. Am I wrong ? Or what am I missing ?

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:)

 

How do I find my Windows 10 product key?

In a Command Prompt (Admin) or Powershell (Admin) run:
slmgr /dlv

If the partial product key shown in the results is 3V66T then your full product key is:
VK7JG-NPHTM-C97JM-9MPGT-3V66T

 

Transferring Windows Key to another PC

If "slmgr /dlv" or "slmgr /dli" shows activation via the OEM channel, then very obviously the license is OEM. But if the command shows activation via the retail channel and the partial product key shows that it is one of the generic product keys for Windows 10, then the license could be either OEM or retail. One example is that upgrades from OEM Windows 7 and 8/8.1 always get the generic Windows 10 product key activated via the retail channel.

If a user has a custom built computer and the original Windows 10 was activated with an OEM product key, then they reinstall Windows 10 with just the option to skip the product key and activate with the digital license, the generic product key gets assigned and activates via the retail channel.

Even a full OEM install from the factory using the product key embedded in firmware can be changed to activating on the retail channel simply by changing the product key to the generic product key.

 

How do I know if a windows 10 product key is unused?

Many thanks MikeP

"slmgr /dlv" worked

It showed that dialog you posted with a Partial Product Key matching the last 5 characters of one of my keys.

Now I know for certain which one of my keys that is unused