How to validate Windows 11 genuinity of a vendor provided product keys?

Hello Paras,

Yes. The safest way is not to validate the product key itself, but to verify the activation status and licensing channel on the installed PCs.

On a sample device, open an elevated Command Prompt and run:

slmgr /dlv

Check the Description and Product Key Channel fields. For new OEM desktops, you would normally expect an OEM_DM or OEM channel license embedded in the device firmware. If the system shows Volume:MAK, Volume:GVLK, or unexpected KMS-related channels, that would warrant further review.

You can also verify activation under Settings > System > Activation. A genuine Windows installation should show that Windows is activated with a digital license. For OEM devices, the firmware-embedded key can also be checked using:

wmic path SoftwareLicensingService get OA3xOriginalProductKey

Since this is a procurement of 200+ devices, I would recommend requesting the OEM Certificate of Authenticity documentation, model numbers, serial numbers, and proof that the devices were supplied with Windows 11 Pro licenses from the vendor. If you provide the output of slmgr /dlv from one of the machines (redacting the last 5 characters of the key if desired), I can help determine whether the licensing channel is consistent with genuine Windows 11 Pro OEM licensing.

Hi Harry,

Many thanks for you information. While running the command its shows as below...please advise further