Unprotect Bitlocker Volume

Summary

Disable Bitlocker protection on one (or all) volumes.

Sample Run

Dependencies

Unprotect-BitLockerVolume

User Parameters

Name	Example	Required	Description
MountPoint	C:	Partially	The target volume to remove Bitlocker protection from.
All	True / False	Partially	Use this switch to remove Bitlocker protection from all volumes.

Note:

• The All parameter will take precedence if both parameters are specified.
• If no parameters are set, the script will attempt to disable BitLocker on the system drive.

Task Creation

Create a new Script Editor style script in the system to implement this task.

Name: Unprotect Bitlocker Volume
Description: Disable Bitlocker protection on one (or all) volumes.
Category: Security

Parameters

Add a new parameter by clicking the Add Parameter button present at the top-right corner of the screen.

This screen will appear.

• Set MountPoint in the Parameter Name field.
• Select Text String from the Parameter Type dropdown menu.
• Click the Save button.

Click the Confirm button to save the parameter.

Add a new parameter by clicking the Add Parameter button present at the top-right corner of the screen.

This screen will appear.

• Set All in the Parameter Name field.
• Select Flag from the Parameter Type dropdown menu.
• Click the Save button.

Click the Confirm button to save the parameter.

Task

Navigate to the Script Editor Section and start by adding a row. You can do this by clicking the Add Row button at the bottom of the script page.

A blank function will appear.

Search and select the PowerShell Script function.

The following function will pop up on the screen:

# # Parameters and Globals
# # Be sure that the name of the hashtable property matches the name of the parameter of the script that you are calling.
$mountPoint = '@MountPoint@'
$all = '@All@'
$Parameters = @{}
if ( $all -match '1|Yes|True' ) {
    $Parameters.Add( 'All', $true )
} else {
    if ( $mountPoint -notmatch '^[A-z]{1}:{0,1}$' ) {
    $mountPoint = $env:SystemDrive
    } 
    $Parameters.Add( 'MountPoint', $mountPoint )
}
#region Setup - Variables
$ProjectName = 'Unprotect-BitLockerVolume'
[Net.ServicePointManager]::SecurityProtocol = [enum]::ToObject([Net.SecurityProtocolType], 3072)
$BaseURL = 'https://file.provaltech.com/repo'
$PS1URL = "$BaseURL/script/$ProjectName.ps1"
$WorkingDirectory = "C:\ProgramData\_automation\script\$ProjectName"
$PS1Path = "$WorkingDirectory\$ProjectName.ps1"
$Workingpath = $WorkingDirectory
$LogPath = "$WorkingDirectory\$ProjectName-log.txt"
$ErrorLogPath = "$WorkingDirectory\$ProjectName-Error.txt"
#endregion
#region Setup - Folder Structure
New-Item -Path $WorkingDirectory -ItemType Directory -ErrorAction SilentlyContinue | Out-Null
$response = Invoke-WebRequest -Uri $PS1URL -UseBasicParsing
if (($response.StatusCode -ne 200) -and (!(Test-Path -Path $PS1Path))) {
    throw "No pre-downloaded script exists and the script '$PS1URL' failed to download. Exiting."
} elseif ($response.StatusCode -eq 200) {
    Remove-Item -Path $PS1Path -ErrorAction SilentlyContinue
    [System.IO.File]::WriteAllLines($PS1Path, $response.Content)
}
if (!(Test-Path -Path $PS1Path)) {
    throw 'An error occurred and the script was unable to be downloaded. Exiting.'
}
#endregion
#region Execution
if ($Parameters) {
    & $PS1Path @Parameters
} else {
    & $PS1Path
}
#endregion
if ( !(Test-Path $LogPath) ) {
    throw 'PowerShell Failure. A Security application seems to have restricted the execution of the PowerShell Script.'
}
if ( Test-Path $ErrorLogPath ) {
    $ErrorContent = ( Get-Content -Path $ErrorLogPath )
    throw $ErrorContent
}
Get-Content -Path $LogPath

Row 2 Function: Script Log

Add a new row by clicking the Add Row button.

A blank function will appear.

Search and select the Script Log function.

The following function will pop up on the screen:

In the script log message, simply type %output% and click the Save button.

Click the Save button at the top-right corner of the screen to save the script.

Completed Task

Output

• Script log