Auto remove invalid Windows Firewall rules

AutoRemove-NetFirewallRule.ps1

# needs Admin privilege
# TODO: Add -confirm

$rules = Get-NetFirewallRule

foreach ($rule in $rules) {
    if ($rule.Name.contains("Query User")) {
        $filepath = $rule.Name.Substring($rule.Name.Indexof('}')+1)
        if (-not (Test-Path $filepath)) {
            echo "Removing $filepath"
            Remove-NetFirewallRule -InputObject $rule
        }
    }
}