Written by Eric Wyatt (last updated August 12, 2019)
The vast majority of Windows 10 users are using a computer purchased from a PC manufacturer such as Dell, HP, Asus, or others. Manufacturers ship the computer with the Windows operating system already installed. Every version of Windows is assigned what is referred to as a product key. The product key helps ensure the operating system has not been installed on multiple computers.
When manufacturers like Dell or HP ship a computer, the installed operating system has what is referred to as an OEM (Original Equipment Manufacturer) key. Your OEM key can help with registration and installations. To find the OEM key assigned to your computer, you can search through all the material(s) that was packaged with your computer, or the OEM key may have been emailed to you.
Rather than searching everywhere for the number you can dig it out quickly and easily using the Command Prompt. To find your OEM key using the Command Prompt follow these steps:
wmic path softwarelicensingservice get OA3xOriginalProductKey (See Figure 1.)
Now you can quickly view your OEM Key any time you need it, without having to sort through bags and papers that may have come with your computer.
Figure 1. The Command Prompt window showing the OEM Key.
This tip (13661) applies to Windows 10.
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