Get Computer Name & BIOS Serial Number Using PowerShell

Get Computer Name & BIOS Serial Number Using PowerShell

In IT Support, we often need to quickly identify a user's computer and verify its hardware asset information. PowerShell provides a simple way to retrieve the computer name and BIOS serial number.

1. Get Computer Name and BIOS Serial Number

$env:COMPUTERNAME (Get-CimInstance Win32_BIOS).SerialNumber

OR

Get-CimInstance Win32_BIOS | Select-Object SerialNumber

Example output:

• DESKTOP-ABC123
• 5CD1234XYZ

$env:COMPUTERNAME → Displays the Windows computer name.

Get-CimInstance Win32_BIOS → Retrieves BIOS information.

.SerialNumber → Extracts the device's serial number.

2. Display Only the Serial Number

You can also use:

Get-CimInstance Win32_BIOS | Select-Object SerialNumber

Example:

SerialNumber

------------

5CD1234XYZ

Why is this useful in IT Support?

This quick command can help technicians with:

• Asset identification
• ServiceNow/ticket updates
• Laptop/Desktop inventory
• Hardware troubleshooting
• Warranty or replacement verification

Tip: Instead of checking the device physically for the serial number, PowerShell can retrieve it within seconds—provided the manufacturer has populated the BIOS/UEFI serial-number field.