If you have a computer that didn't come with a digital or printed license key, then odds are it's embedded in your UEFI firmware or BIOS. The beauty of this method is that you don't need to know your key nor activate Windows; it's all done for you. But, if you want to retrieve your Windows key, it's simple. Here's how.

Begin by opening PowerShell as admin.

All we need to do now is type in wmic path SoftwareLicensingService get OA3xOriginalProductKey.



Now write it down or take a screenshot.

There you have it, the shortest How-To we've ever written.

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