Technical Anshu
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🏷️ System Info Trick

Need Your Laptops Serial Number for Warranty or Drivers Get It from CMD

The sticker under the laptop is scratched off, support is asking for a serial number, or a driver website wants your exact model. One short command reads the serial straight from the motherboard — no sticker needed.

✍️ Technical Anshu🪟 Windows 10 / 11⏱️ 1 minute trick
🎥 Information commands like these fill a whole section of the CMD toolkit video — watch it live

Every laptop and branded PC has its serial number stored electronically in its BIOS/UEFI firmware — the same place the manufacturer put it at the factory. Support engineers ask for it because it identifies your exact machine: its model, its configuration, and its warranty status. Windows can read it any time with built-in commands, which is far more reliable than hunting for a faded sticker. Open Command Prompt (a normal window works for all commands on this page) and use the commands below. While you are there, this page also shows the companion commands technicians run alongside — exact model name, Windows version, full specification report — so one visit to CMD answers every question a support call usually asks.

Command Prompt
C:\Users\Anshu>wmic bios get serialnumber SerialNumber 5CD1234ABC
👆 Two seconds, no sticker needed — the serial number read straight from the motherboard (CMD window recreated; the serial shown is a sample)
1

Get the Serial Number

  1. Type wmic bios get serialnumber and press Enter
  2. The serial number prints on the next line under the "SerialNumber" heading
  3. Copy it exactly — this is what warranty support and driver sites ask for
2

Get the Exact Model Name

  1. Type wmic csproduct get name and press Enter
  2. Windows shows the manufacturer's exact model name for this machine
  3. Use this name on the manufacturer's support page to get precisely the right drivers and BIOS files
3

Full System Report in One Command

  1. Type systeminfo and press Enter
  2. Scroll the report: Windows edition and version, original install date, system manufacturer and model, processor, total RAM, and the last boot time
Command Prompt
OS Name: Microsoft Windows 11 Pro OS Manufacturer: Microsoft Corporation System Manufacturer: HP System Model: HP Laptop 15s-fq5xxx System Type: x64-based PC Total Physical Memory: 16,384 MB
👆 A few lines from the middle of a systeminfo report (values are an example machine)

Handy extra: hostname prints the computer's name on the network — useful when an admin asks "which PC is yours?"

4

Save the Report to a File ⭐

When a technician asks you to "send your system details", do not type them out — export them:

  1. Type systeminfo > %USERPROFILE%\Desktop\my-pc-info.txt and press Enter
  2. A file named my-pc-info.txt appears on your Desktop with the complete report
  3. Attach it to your email or ticket as it is

Serial number, model and system report are just the information corner of the toolkit. The full video covers the whole range — information, repair, network and administration — demonstrated command by command.

⚠️ Two honest exceptions: on some assembled (custom-built) PCs the serial command returns "To be filled by O.E.M." — the builder never programmed a serial into the board, so there is nothing to read. And Microsoft has marked the wmic tool as deprecated; it still works on current Windows 10 and 11 systems, but on a future Windows version it may be removed, with PowerShell as its replacement.

🎥 Watch the Complete CMD Toolkit

Information, repair, network and admin commands — the complete toolkit demonstrated live in one video.

▶️ Watch Full Video
❓ Frequently Asked Questions

The command shows "To be filled by O.E.M." instead of a serial number. Why?

Your motherboard's firmware simply has no serial programmed into it. This is common on custom-assembled PCs. In that case, check the physical sticker on the case, the motherboard box, or your purchase invoice for the serial.

Is the serial number the same as the Windows product key?

No — they are different things. The serial number identifies the physical machine (for warranty and drivers). The product key licenses Windows itself. Do not send your product key to anyone; the serial number, in contrast, is safe to share with manufacturer support.

Can I get this information if Windows will not start?

Not with these commands — they run inside Windows. If the PC cannot boot, the serial is usually still on a sticker under the laptop or on the back of the PC case, and some brands also show it on a BIOS/UEFI information screen when you enter setup at power-on.

This guide is based on the Technical Anshu CMD Toolkit video • Stuck on a step? Ask in the video comments — you will get a reply 🙏