Removes orphaned entries from the Windows Firewall.

firewall_cleanup.ps1

#
# firewall_cleanup.ps1
#
# Removes orphaned entries from the Windows Firewall.
#

$rules = Get-NetFirewallApplicationFilter | Where {($_.Program -ne "Any") -and ($_.Program -ne "System") -and (-not (Test-Path ([Environment]::ExpandEnvironmentVariables($_.Program))))} | Get-NetFirewallRule

foreach ($rule in $rules)
{
	Write-Host "REMOVING RULE:" $rule.Direction "-" $rule.DisplayName
	Remove-NetFirewallRule -InputObject $rule #-WhatIf
}

pause