Windows doesn't display your PC's series number anywhere in its interface, and neither practise popular system information tools. But y'all can oft find a PC'due south serial number with a simple command, a peek in your BIOS, or on the hardware itself.

Run the WMIC Command

Open a Command Prompt window to get started. On Windows 10 or 8, right-click the Commencement push and select "Command Prompt". On Windows 7, printing Windows + R, type "cmd" into the Run dialog, and then press Enter.

At the Command Prompt, type the following command and and so printing Enter:

wmic bios get serialnumber

Y'all'll see the estimator's serial number displayed below the text "SerialNumber". This control uses the Windows Management Instrumentation Command-line (WMIC) tool to pull the system'south serial number from its BIOS.

If you don't see your PC's series number, arraign your PC's manufacturer. The number volition just appear hither if the PC manufacturer saved it to your estimator's BIOS or UEFI firmware. PC manufacturers don't always make full in the number properly. In that case, yous'll see something like "0" or "To be filled by O.E.M." instead of an actual serial number.

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This is also true if yous built your own PC because the PC itself won't accept a series number. However, you tin can look up the serial number of your motherboard and other components.

Check the BIOS

You may also be able to find the serial number in the BIOS or UEFI firmware settings screen. This technique won't get you a serial number if the wmic command didn't, since the command pulls the serial number from the BIOS. However, checking the BIOS could exist helpful if you can't actually sign into Windows to run the wmic command.

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Admission the BIOS or UEFI firmware settings screen and look around for a "Serial Number" somewhere on a organisation information screen. It'll be in a different identify on different PCs, only you can usually find it somewhere on the "Main" or "System" screen.

Find the Series Number On the PC'due south Hardware, Box, or Elsewhere

If you don't see a series number after running the wmic command—or if you lot just can't plow the PC on or don't have admission to it—there are several other places you might discover the serial number:

  • If you accept a laptop, flip it over. On some laptops, you'll see the number on a sticker. On others, you'll see the number printed directly on the metallic or plastic the laptop is fabricated from. If your laptop has a removable battery, the serial number is sometimes on a sticker within the battery compartment, under the bombardment.
  • If you have a desktop PC, look at the back, top, or side of the case for some sort of sticker. The number may also be on a sticker inside the instance, so you might have to open it up.
  • If you lot tin't discover the serial number on the PC itself, look online for instructions specific to your model. The manufacturer's website should tell you exactly where to look.
  • If you registered your PC with the manufacturer or received warranty service, the serial number should be included in the registration documentation, warranty service receipt, or electronic mail confirmation for the service.

  • If y'all still have the original product box, it usually has the serial number printed on it—oftentimes on the same sticker with the bar code.
  • If you purchased the PC online or in store, the serial number may exist printed on the physical or email receipt you received.

And if y'all just can't find your series number at all, don't give up hope. If you take proof of purchase, the manufacturer still may be able to help you with whatever service you need and may even be able to notice out the serial number for you.