2 Methods to Get System Serial Number on Windows

A serial number is a unique identifier provided by the manufacturer to identify a specific device. It helps distinguish one machine from another, even if they share the same model and specifications. Accessing this identifier is useful for tasks such as inventory tracking, technical support, and confirming warranty status. For example, manufacturers often require the serial number when processing service requests or validating product ownership. This tutorial provides 2 methods how to get system serial number on Windows.

In this context, the system serial number refers to the identifier associated with the entire computer (laptop, desktop, or server), not individual hardware components.

Method 1 - CMD

The Command Prompt provides a quick way to display the system serial number through a built-in system utility. Run the following command:

wmic bios get serialnumber | find /v "SerialNumber"

Keep in mind that on custom-built systems or certain virtual machines, the result may appear blank or display a generic value such as Default string.

Method 2 - PowerShell

PowerShell offers another straightforward approach to retrieve the same information. Execute the following command:

(Get-WmiObject Win32_BIOS).SerialNumber