Clean uninstall the Bitdefender engine

This article provides the steps need to perform a clean uninstall of the Managed Antivirus Bitdefender Engine from a device.

To complete the clean uninstall process, you need the Managed Antivirus Uninstall Tool which is only available from N-able support. Create a support case requesting the tool at N-ableMe.

Complete the following steps to perform the clean uninstall process:

  1. Uninstall from the All Devices view
  2. Delete files, folders and registry entries
  3. Run the MAV-BD uninstall tool
  4. Reboot the device

Uninstall from the All Devices view

  1. Right-click the device in the North-pane then select Edit Device.
  2. Select Managed Antivirus.
  3. Change Setting to Off.

    4. Read the Disk Encryption Manager message and take appropriate action before continuing.

  4. Select OK to uninstall MAV-BD.

    5. The device’s Summary tab shows Managed Antivirus - Uninstalling.

Delete files, folders and registry entries

When the device’s Summary tab shows Managed Antivirus - Not Installed, delete the following files, folders and registry entries from the device:

Files and Folders

Item Location Item to Delete
C:\Program Files (x86)\Advanced Monitoring Agent\

(Agent installed via Group Policy)

C:\Program Files (x86)\Advanced Monitoring Agent\GP\

BDInstall.log
C:\Program Files\ All Managed Antivirus entries
C:\Program Files\Common Files All Managed Antivirus entries
C:\ProgramData\ All ManagedAntivirus and Managed Antivirus entries
%TEMP% BDInstall folder
%WINDIR%\Temp BDInstall folder
All local drives trufos.sys

Registry

Back up the registry before making changes. Registry changes take effect immediately. There is no automatic backup.

  1. Open regedit.exe.
  2. Make a backup of the registry.
  3. Search through the registry and remove any remaining entries for Bitdefender and Managed Antivirus.

    4. Delete MAV-BD entries under the Uninstall key. For example, the Managed Antivirus Master Service key:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F88FE7C0-2B64-405B-9197-25F8BE135459}_is1

Run the MAV-BD uninstall tool

  1. Reboot the device into Safe Mode with Networking.
  2. Copy the Bitdefender uninstall tool to the device.
  3. Open Command Prompt as Administrator.
  4. Go to the uninstall tool directory.
  5. Run the following command:

    6. MAV_UninstallTool-<VERSION>.exe /bdparams /bruteForce /destructive

    For example:

    MAV_UninstallTool-1.2.3.456.exe /bdparams /bruteForce /destructive

    The switches are case-sensitive:
    /bruteForce
    Forcefully uninstalls the product, removing remnants and corrupted files from incomplete installations or uninstalls.
    /destructive
    Completely removes MAV when the endpoint cannot detect MAV.

Reboot the device

  1. After the uninstall tool finishes, reboot the device .
  2. Start Windows Normally if prompted.

    3. The device is now ready to re-install MAV-BD if needed.

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