Bit of an odd one.

[Flatpackhamster]

Dear everyone,

This is my first post here and I'm here because I've drawn a blank trying to fix the problem that I'm having. I hope that I've posted this in the right place.

I had a call from a friend who was having problems with a Win7 Home Premium 64-bit machine. The internet wasn't working. I went over and took a look and couldn't get a connection to the router (no IP) via a network cable. I brought it back to my house, tried a connection via my cable to my router. I still couldn't get a connection. I put it down to a faulty network card and ordered a wifi card as a replacement.

I installed the wifi card and exactly the same problem occurred. Then I saw a popup saying that the firewall was disabled. I went to enable the firewall and got the following error:

Windows Firewall can't change some of your settings. Error code 0x8007042c.

I've traced this back to the services.msc and have been looking at all the services to see what's wrong. I can't start any of the internet functionality because the Base Filtering Engine service won't start. When I try to start the Base Filtering Engine I get the following error:

Windows could not start the Base Filtering Engine service on Local Computer. Error 2: The system cannot find the file specified.

I've done all the obvious things - checked my Hijackthis log, run TDSSKiller and Rootkitrevealer (which wouldn't run), run Malwarebytes anti-Malware and Superantispyware in the hope that it might be a virus. I've uninstalled AVG Free 2011 which some websites suggested might be at fault.

Can I simply copy the missing files for the Base Filtering Engine from another Win7x64 PC, and if so, what are they?

Does anyone else have any suggestions?

Thanks for your time.

 

[Flatpackhamster]

No thoughts on this one?

 

[Bill2]

Suggest you run sfc scan couple of times.

http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

 

[Barman58]

Not sure what files are corrupted

have a look at running the system file checker

http://www.sevenforums.com/tutorials/139810-sfc-scannow-run-command-prompt-boot.html

hopefully this will correct the error

 

[Flatpackhamster]

Thanks for your replies. I have tried that. Does it make a difference if you run it more than once?

 

[Bill2]

It may. SFC may not be able to repair everything in one pass, so its advisable to run it 2-3 times.

If that too doesnt help, the only thing short of a clean install is a repair install.

http://www.sevenforums.com/tutorials/3413-repair-install.html

 

[Flatpackhamster]

It may. SFC may not be able to repair everything in one pass, so its advisable to run it 2-3 times.

If that too doesnt help, the only thing short of a clean install is a repair install.

http://www.sevenforums.com/tutorials/3413-repair-install.html

It didn't tell me that it had found any errors on the first pass, but I'll try it a couple more times and then try the repair install.

 

[Barman58]

I would also try running at start-up, as shown in the link I provided, as this will sometimes pick-up problems not seen with a run within windows