Check the sticker or label on your PC or laptop
Look in the BIOS or UEFI firmware for an embedded OEM key
Open Command Prompt as administrator and run: `wmic path softwarelicensingservice get OA3xOriginalProductKey`
Open PowerShell as administrator and run: `(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey`
Use a third-party key finder tool
Check your Microsoft account for digital license information
Review the original purchase email or product packaging
Contact the device manufacturer or seller