Need to find your computer’s serial number but don’t want to flip it over or open the case? Whether you need it for warranty purposes, tech support, or insurance, Windows 11 makes it simple to locate this important identifier. In this guide, we’ll cover several easy methods to find your laptop or desktop serial number—no special tools required.
Why Do You Need Your Serial Number?
Your serial number is like your computer’s fingerprint—it’s unique and essential for:
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Warranty claims or repairs
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Customer support assistance
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Tracking devices for businesses or schools
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Insurance documentation
Can You Find It Without Looking at the Hardware?
Yes! While the serial number is often printed on a sticker or engraved on your device, Windows 11 lets you check it digitally using built-in tools.
Methods to Find Your Computer Serial Number in Windows 11
Here are the simplest and most reliable methods.
Using Command Prompt
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Press Win + S, type cmd, and select Run as administrator.
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In the Command Prompt window, type:
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Press Enter.
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Your serial number will appear on the screen.
This is one of the quickest ways.
Using Windows PowerShell
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Press Win + X and choose Windows Terminal (Admin) or PowerShell (Admin).
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Enter the command:
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Press Enter to reveal your serial number.
Checking in System Information
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Press Win + R, type msinfo32, and hit Enter.
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In the System Information window, look for Serial Number under System Summary.
Checking on the Device Itself
If you can access the physical device:
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For laptops: Look on the bottom panel or under the battery (if removable).
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For desktops: Check the back, side, or inside the case.
What If the Serial Number Shows as “To Be Filled by O.E.M.”?
This happens when the manufacturer didn’t embed it in the BIOS. In that case, you’ll need to locate it physically on the device or from the purchase invoice.
Can You Find the Serial Number Through BIOS?
Yes, restart your computer and enter the BIOS/UEFI setup (usually by pressing F2, Del, or Esc during boot). Look for System Information—the serial number is often listed there.
Is It Safe to Share Your Serial Number?
Avoid sharing it publicly—it’s safe to give to official support agents but don’t post it online, as it can be used for fraudulent warranty claims.
Can You Find It If the Laptop Won’t Boot?
Yes, check:
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The sticker on the bottom or inside the battery compartment
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Original purchase box or invoice
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Manufacturer’s account (if you registered the product online)
What’s the Difference Between Serial Number and Product Key?
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Serial number: Identifies your specific device.
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Product key: Activates your Windows license. They are not the same.
Final Thoughts
Finding your computer’s serial number in Windows 11 is easier than most people think. Whether you use Command Prompt, PowerShell, or System Information, it only takes a minute. Always keep your serial number recorded somewhere safe for warranty and support purposes.
FAQs
1. Can I change my computer’s serial number?
No, it’s set by the manufacturer and cannot be changed legally.
2. Does every PC have a serial number?
Yes, but some older or custom-built PCs may not display it digitally.
3. Can I find the serial number using my Microsoft account?
Yes, if your device is linked to your account, check under Devices at account.microsoft.com.
4. Is the serial number the same as the model number?
No, the model number identifies the type of device; the serial number identifies your specific unit.
5. Can I find the serial number without admin rights?
Yes, you can use System Information or check the physical label.