Error code 0x80070424 firewall wont fix

Hi

Make sure that PC is clean(free from zero access rootkit before trying this fixes)

This firewall issue is commonly found on vista and windows 7 (64 BIT OS)

Press Windows+R key  and type

regedit and click ok

go to

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\BFE

Right click on it-permissions

Click on ADD and type

Everyone and click ok

Now Click on Everyone

Below you have permission for users

Select full control and click ok

Press Windows+R key  and type

services.msc and click ok

start base filtering engine service and then windows firewall service

Windows could not start Windows Firewall on local Computer. See event log, if non-windows services contact vendor. Error code 5.

Download and launch this key

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SharedAccess

Right click on it -permissions

Click on Add and type

Everyone and select Full control

You should be able to start firewall now

Download

Security center service- wscsvc

windows defender -windefend

BITS - BITS

Windows update - wuauserv

Launch them and click YES when you get a UAC prompt,restart the PC

*Edit*

Looks like there may be a pattern of damage to several programs that's caused by the Win 7 Security malware.

http://answers.microsoft.com/en-us/windows/forum/windows_7-security/windows-defender-service-has-disappeared-i-suspect/10cced4a-5c61-4b9a-abef-ba35b34c9f18

http://answers.microsoft.com/en-us/windows/forum/windows_7-security/virus-recovery-error-codes-0x80070424-and/28ed2ede-076c-4955-bb49-44d0c2ee1ed3

http://answers.microsoft.com/en-us/windows/forum/windows_7-security/error-code-0x80070424-with-windows-firewall/ec3fc3b8-69ec-4b4b-a703-4b745fe6e8ee  Be sure you read the post of Michael Phelps in the above thread.

How did you "get rid of it?"  How do you know you got rid of it?  Did you try multiple on-demand scanners until several reported the computer did not contain malware? What "downloaded spyware" are you talking about?  Since you are using McAfee, did McAfee help you remove the malware?

Did you see this link and follow their recommendations by chance? http://www.bleepingcomputer.com/virus-removal/remove-win-7-security-2012

Have you sought assistance from MS Support? 

You can get free help with malware removal here: http://supportservices.microsoft.com/support/services/virus_malware_removal

If you are in North America, you can call MS Support at 866-727-2338 for help with virus and spyware infections. 

For international information see your local subsidiary support site.

Or, obtain assistance from your antimalware provider (Avast, AVG, Avira, McAfee, Norton, Trend Micro, etc).

Good luck...