VIDEO: How to find your Windows 11 serial number using Command Prompt
Learn how to quickly locate your serial number and make warranty, support, or device management effortless.
You’ve probably had to reinstall Windows 11 at some point, or maybe contact support to check if your PC’s warranty is still valid. In moments like these, one small but crucial piece of information often comes up: the serial number.
It’s a unique identifier tied to your computer’s hardware, and it can save you a lot of time when troubleshooting, verifying ownership, or requesting technical support. Unfortunately, most users don’t think about it until it’s too late, like when their Windows system won’t boot or the sticker on the back has faded.
The good news? You don’t need to flip your laptop over or dig through tabs to find it. Windows makes it easy to retrieve your serial number right from your system using a quick command prompt. Here’s how to do it in just a few steps.
David Adubiina
3 Steps to Check Your Windows 11 Serial Number Using Command Prompt
Step 1: In the search bar next to the Start menu, type cmd.
Step 2: Right-click Command Prompt and select Run as administrator.
Step 3: In the Command Prompt window, type the following command and press Enter: wmic bios get serialnumber
Alternatively, you can also use: wmic csproduct get identifying number
Your serial number will appear right below the “SerialNumber” or "Identifying Number" field.
Oluwaseun Bamisile
Conclusion
With just a quick command, you have what you need right on your screen. The only thing to keep in mind is never to share your serial number or product key publicly, and avoid using unverified third-party apps to retrieve it. Windows already gives you everything you need to do it safely.
It’s a small tip that can save you time and frustration when you need warranty support, hardware service, or a reinstall. Give it a try—you’ll see how easy it is to keep your PC details organized and ready whenever you need them.
