Public/Functions/Get-MyBiosSerialNumber.ps1
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function Get-MyBiosSerialNumber { <# .SYNOPSIS Gets MyBiosSerialNumber information. .DESCRIPTION Returns MyBiosSerialNumber data for the current system or OSD session context. .PARAMETER Brief Specifies the Brief to use when running Get-MyBiosSerialNumber. .EXAMPLE Get-MyBiosSerialNumber -B <value> Demonstrates a common way to run Get-MyBiosSerialNumber. .LINK https://github.com/OSDeploy/OSD/tree/master/docs .NOTES Author: David Segura - Recast Software 2026-07-13 - Initial help block created 2026-07-13 - Refined generated help text #> [CmdletBinding()] param ( [System.Management.Automation.SwitchParameter]$Brief ) $Result = ((Get-CimInstance -ClassName Win32_BIOS).SerialNumber).Trim() if ($Brief -eq $true) { if ($null -eq $Result) {$Result = 'Unknown'} elseif ($Result -eq '') {$Result = 'Unknown'} #Allow only a-z A-Z 0-9 $Result = $Result -replace '_' $Result = $Result -replace '\W' } $Result } |