check-windows-system-files.md

The 'check-windows-system-files.ps1' Script

This PowerShell script checks the validity of the Windows system files. It requires admin rights.

Parameters

PS> ./check-windows-system-files.ps1 [<CommonParameters>]

[<CommonParameters>]
    This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, 
    WarningVariable, OutBuffer, PipelineVariable, and OutVariable.

Example

PS> ./check-windows-system-files.ps1
✅ checked Windows system files

Notes

Author: Markus Fleschutz | License: CC0

Related Links

https://github.com/fleschutz/PowerShell

Script Content

<#
.SYNOPSIS
	Checks the validity of the Windows system files (requires admin rights)
.DESCRIPTION
	This PowerShell script checks the validity of the Windows system files. It requires admin rights.
.EXAMPLE
	PS> ./check-windows-system-files.ps1
	✅ checked Windows system files
.LINK
	https://github.com/fleschutz/PowerShell
.NOTES
	Author: Markus Fleschutz | License: CC0
#>

#Requires -RunAsAdministrator

try {
	sfc /verifyOnly
	if ($lastExitCode -ne 0) { throw "'sfc /verifyOnly' failed" }

	"✅ checked Windows system files"
	exit 0 # success
} catch {
	"⚠️ ERROR: $($Error[0]) (at line $($_.InvocationInfo.ScriptLineNumber))"
	exit 1
}

(page generated by convert-ps2md.ps1 as of 04/19/2026 17:56:57)