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How to restore Base Filtering Engine manually?

To restore the service follow these recovery instructions:

1. Download ZIP file to your local hard drive and extract BFE.reg registry file from it.

2. Import this file into registry by double-clicking on it in Windows Explorer and answering "Yes" to confirmation question. Then reboot your computer.

3. After rebooting run Regedit and browse to location "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\BFE\Parameters\Policy" (arrow 1 on the image), right click and open "Permissions" (arrow 2 on the image). Please read here how to work with system registry if you are not familiar with it.

4. In the "Permissions for Policy" window, click "Advanced" (arrow 1) and then in the next window click "Add" (arrow 2).

5. Enter "NT Service\BFE" in the "Enter the object name to select" box (arrow 3) and click "Check names" (arrow 4) your text should change to just "BFE" (arrow 5).

6. Click "OK" (arrow 6) and then check the following privileges in the list (arrow 7):
"Query Value"
"Set Value"
"Create Subkey"
"Enumerate Subkeys"
"Read Control"
7. Press "OK" to confirm all changes (arrow 8) and reboot your computer.