Enable Data Execution Prevention using PowerShell

Small script which helps you enable DEP (Data Execution Prevention) wrote in PowerShell:

# Script to enable DEP on clients with and without Bitlocker

$script:ErrorActionPreference = "SilentlyContinue"
$DebugPreference = "Continue"

$ScriptPath = $MyInvocation.MyCommand.Path
$ScriptDir = split-path -parent $ScriptPath
$ScriptName = ($MyInvocation.MyCommand.Name).SubString(0,($MyInvocation.MyCommand.Name).Length-4)

# Function to write Logfile

Function Log($text)
{

$suffix = "{0:d}" -f [System.DateTime]::get_Now()


if ( $LogPath -eq $NULL )
{
$Global:LogPath = "$env:windir\Logs\$Scriptname"

}


if ( $LogFile -eq $NULL )
{
$Global:Logfile = "$LogPath\$Scriptname" + "_" + $suffix + ".log"
}


$date = "{0:G}" -f [System.DateTime]::get_Now()
if (test-path $Logfile)
{ Add-Content $Logfile "$date $text" }
Else
{
New-Item $logfile -ItemType File -force | out-null
Set-Content $Logfile "$date $text" 
}
}


$Global:LogFile = "$env:windir\Logs\enableDEP.log"


Log("-----------------------------------------------------------------------------------")

$depstatus = Get-WmiObject Win32_OperatingSystem

if ($depstatus.DataExecutionPrevention_SupportPolicy -ne 3)

{

[array]$bde = Get-WmiObject win32_EncryptableVolume -Namespace root\CIMv2\Security\MicrosoftVolumeEncryption

if ($bde -lt 0) # No Encryptable volume available
{
& bcdedit -set "{current}" nx optout
if (!$?) {Log("Error: $($error[0])")} Else { Log("Successfully run: bcdedit -set {current} nx optout") }
}

for ($i=0; $i -lt $bde.count; $i++)
{

if ($bde[$i].DriveLetter -eq "C:")
{
if ($bde[$i].ProtectionStatus -eq 0)
{
& bcdedit -set "{current}" nx optout
if (!$?) {Log("Error: $($error[0])")} Else { Log("Successfully run: bcdedit -set {current} nx optout") }
break
}
if ($bde[$i].ProtectionStatus -eq 1)
{
$bde[$i].DisableKeyProtectors()
& bcdedit.exe -set "{current}" nx Optout
if (!$?) {Log("Error: $($error[0])")} Else { Log("Successfully run: bcdedit -set {current} nx optout") }
$bde[$i].EnableKeyProtectors()
break
}
}
Else
{
& bcdedit -set "{current}" nx optout
if (!$?) {Log("Error: $($error[0])")} Else { Log("Successfully run: bcdedit -set {current} nx optout") }
break
}

}




}

Else
{
Log("DEP already enabled")
}

Download it here: