<#
.SYNTAX       check-windows-system-files.ps1 
.DESCRIPTION  checks the validity of the Windows system files (requires admin rights)
.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" }

	write-host -foregroundColor green "✔️ checked Windows system files"
	exit 0
} catch {
	write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}