I cannot activate the Bitdefender Firewall

There are certain situations when Bitdefender Firewall cannot be enabled after installing Bitdefender Internet Security or Bitdefender Total Security on Windows 7. The issue is not caused by the Bitdefender security solutions, but rather by a missing Windows service called Base Filtering Engine.

Base Filtering Engine Service (BFE) is a service that controls the operation of the Windows Filtering Platform. Windows Filtering Platform (WFP) is a network traffic processing platform that allows software to “hook” into Windows networking stack and perform such functions as firewall, traffic shaping, filtering, etc.

This service is essential for operation of many firewall products: Windows built-in firewall, Bitdefender Firewall and many others.

In order for Bitdefender Firewall to work, you need to restore the BFE service. To do that please follow the steps below:

A. Base Filtering Engine (BFE) service is present on the system.

1. Open Control Panel, click on Administrative Tools and then open Services. In the services list, please search for Base Filtering Engine. If the service is in the list, check its status. If the status reads Stopped, right-click on it and select Properties. Then make sure the startup type is set to Automatic, then click on Start.

2. After the process is finished, please restart Windows.

3. If you receive the Access Denied error message when you start the service at step 1, it means you need to set proper permissions for the service in Window Registry.

4. Fix permissions for BFE in the registry:

• Open Registry Editor (type regedit in Start Menu).

• Navigate to HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\services\\BFE\\

• Right-click on the BFE key and select Permissions.

• Click Add, enter Everyone and click OK.

• Click on Everyone in the list at the top, and check the Allow Full Control checkbox below.

• Click OK to dismiss this dialog.

5. Reboot Windows and verify that the service can be started using the instructions from step 1.

B. Base Filtering Engine (BFE) service is NOT present on the system.

1. Open Control Panel, click on Administrative Tools and then open Services. In the services list,     please search for Base Filtering Engine. If the service is not in the list, it needs to be installed.

2. Download the BFE_repair.zip archive from here. Unpack the archive and double click on the BFE_repair file. Click OK / Merge to acknowledge the installation of the file in your Windows Registry.

3. Reboot the computer and set proper permissions for the service in the Windows Registry.

4. Fix permissions for BFE in the registry:

• Open Registry Editor (type regedit in Start Menu).

• Navigate to HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\services\\BFE\\

• Right-click on the BFE key and select Permissions.

• Click Add, enter Everyone and click OK.

• Click on Everyone in the list at the top, and check the Allow Full Control checkbox below.

• Click OK to dismiss this dialog.

5. Reboot Windows and verify that the service can be started. Open Control Panel, click on   Administrative Tools and then open Services. In the services list, please search for Base Filtering Engine. Right-click on it and select Properties. Then make sure the startup type is set to Automatic, then click on Start and reboot your computer again.

After performing the above steps, you should be able to activate Bitdefender Firewall without encountering any issues.

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