Try the recommendations of Corinne, a Microsoft MVP in the last post here: http://www.sevenforums.com/system-security/200214-window-7-firewall-error-code-0x80070424.html
If that fails to help run Hijackthis and post its lof on one fo the following forums:
Do not post Hijackthis logs here, we can't help you with those !
Post the logs at one of these specialist Forums:
Be sure to read all the sticky announcements/instructions at the top of each malware forum!
To fix this issue we have to Enable the Base Filtering Engine service
If the above one is not working try the following registry Fix.
Registry editing for Turn On the Base Filtering Engine.
Save the file on your desktop. Rename the file as BFE.reg
Open the Registry Run-->Type REGEDIT and press on Ok.
Now you will get a Registry Editor. Click on the File Menu in the Registry Editor and press on Import. Locate the file BEF.reg on the desktop. Press on Open. –> Yes -> Ok.
Now restart the computer. After that go to the registry once again and go to the location
HKLM\System\Current control set\services\BFE
Right Click –> Permission –> Advance –> Add — > Everyone
Now restart the computer. The issue will be fixed now.