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Solved: Missing Base Filtering Engine in Windows 7

December 12th, 2011 Leave a comment Go to comments

UPDATE 21 Jan 2012:  If you are missing just BFE, the information below should be helpful. However, if you are missing BFE, Windows Firewall, Security Center and a couple of other services after a virus infection, you are going to need a more comprehensive security services fix. The second post by Farstrider (that starts “you can also try this:”) works great. After getting the Norton 5013,3 error on yet another customer computer, I found this solution fixed the Norton problem without requiring me to reinstall the OS. HOWEVER, even still the Security Center service was still not starting, fixing that required me to download and run the Security Center registry entry from here (reboot afterward). Good Luck.

It looks like there is a virus now that can take out the Base Filtering Engine Service in Windows 7, and I suppose then in Vista and XP as well. I noticed this problem on a computer that I removed a virus from. Everything looked fine until I went to install Norton Antivirus and it barfed with an error message about Error “5013,3”. The instructions to fix the problem included restarting the Base Filtering Engine Service but oops, it wasn’t even there. As it turns out, the fix for this is easier than you might think.

The fix I used was to recreate the BFE service entry in the registry, which had been deleted. The registry entry that needs to be recreated is:


According to this Microsoft Technet article, you can just export the key from a working machine of the same OS and import it (just double click on the exported and moved .reg file) into the problem machine. I can tell you this absolutely worked like a charm for me.

WordPress won’t let me attach a copy of my Windows 7 x64 BFE entry, but if you need one, this link should work, otherwise leave a comment and I’ll try and mail it to you..


  1. jerry
    November 23rd, 2013 at 00:32 | #1

    I have the BFE problem; I will take you up on the offer to mail the fix. I was about reboot the entire OS.
    Thank you ;

  2. howie
    December 31st, 2013 at 02:13 | #2

    thanks a lot, blessings. it workes like a charm. :)

  3. Dustin
    May 10th, 2014 at 14:40 | #3

    I have the BFE problem as it does not show up in services. Have exhausted all resources in Microsoft Community with no help.

    When I tried the “this link should work” I received the following:

    Cannot import C:\Users………\BFEWin764.reg
    Not all data was successfully written to the registry. Some keys are open by the system or other processes.

    Any ideas?

  4. Julie
    January 21st, 2015 at 21:16 | #5

    This might be a stupid question but if it won’t boot how do I get in to edit the registry?

    • January 22nd, 2015 at 09:45 | #6

      You need to boot to the recovery environment then run Regedit from the command prompt. You’ll need to load the target hive from the C: drive as a separate step. The whole process is more involved than I can cover in detail here but that’s the basic strategy.

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  1. January 21st, 2012 at 22:13 | #1