Manually Fix KB3159398

#Load GPO module
Import-Module GroupPolicy
#Get all GPOs in current domain
$GPOs = Get-GPO -All
#Check we have GPOs
if ($GPOs) {
#Loop through GPOs
foreach ($GPO in $GPOs) {
#Nullify $AuthUser & $DomComp
$AuthUser = $null
$DomComp = $null
#See if we have an Auth Users perm
$AuthUser = Get-GPPermissions -Guid $GPO.Id -TargetName “Authenticated Users” -TargetType Group -ErrorAction SilentlyContinue
 #See if we have the ‘Domain Computers perm
$DomComp = Get-GPPermissions -Guid $GPO.Id -TargetName “Domain Computers” -TargetType Group -ErrorAction SilentlyContinue
 #Alert if we don’t have an ‘Authenticated Users’ permission
if (-not $AuthUser) {
#Now check for ‘Domain Computers’ permission
if (-not $DomComp) {
                Write-Host “WARNING: $($GPO.DisplayName) ($($GPO.Id)) does not have an ‘Authenticated Users’ permission or ‘Domain Computers’ permission – please investigate” -ForegroundColor Red
}   #end of if (-not $DomComp)
else {
#COMMENT OUT THE BELOW LINE TO REDUCE OUTPUT!
               Write-Host “INFORMATION: $($GPO.DisplayName) ($($GPO.Id)) does not have an ‘Authenticated Users’ permission but does have a ‘Domain Computers’ permission” -ForegroundColor Yellow
}   #end of else (-not $DomComp)
}   #end of if (-not $AuthUser)
elseif (($AuthUser.Permission -ne “GpoApply”) -and ($AuthUser.Permission -ne “GpoRead”)) {
#COMMENT OUT THE BELOW LINE TO REDUCE OUTPUT!
Write-Host “INFORMATION: $($GPO.DisplayName) ($($GPO.Id)) has an ‘Authenticated Users’ permission that isn’t ‘GpoApply’ or ‘GpoRead'” -ForegroundColor Yellow
}   #end of elseif (($AuthUser.Permission -ne “GpoApply”) -or ($AuthUser.Permission -ne “GpoRead”))
else {
   #COMMENT OUT THE BELOW LINE TO REDUCE OUTPUT!
            Write-Output “INFORMATION: $($GPO.DisplayName) ($($GPO.Id)) has an ‘Authenticated Users’ permission”
        }   #end of else (-not $AuthUser)
    }   #end of foreach ($GPO in $GPOs)
}   #end of if ($GPOs)

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