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Possible Duplicate:
How do I get rid of malicious spyware, malware, viruses or rootkits from my PC?

I caught the Trojan right away, I think, but both my McAfee & Win 7 (x64) firewalls are not able to be engaged/turned on now. MS Error Code 0x80070424 when attempting to turn on Win 7 firewall. No viruses. Swept it with McAfee AV, Malwarebytes Anti-Malware, Microsoft malware removal tools. Followed Microsoft's three courses of alternative actions they posted for instructions for getting the Win 7 firewall back up and on. Nothing. Same error code. The post just said see MS support if those fixes failed.

So I removed McAfee altogether. Still Win 7 (professional version) firewall won't come on; and clean of detectable bugs.

And I'm fully updated with MS Windows 7 updates as well, which is no longer automatic, that too a legacy of the trojan bug I think. Any thoughts on how to get the Win 7 firewall operational??? And auto updating reengaged?

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marked as duplicate by Canadian Luke, Siim K, Simon Sheehan, TFM, Dave Jan 3 '13 at 9:06

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

These may or may not help: and – Jan 11 '12 at 0:40
honestly, unless there's some compelling reason not to, wiping the system is the best solution – Journeyman Geek Jan 11 '12 at 0:44
Agreed. The chances are some system level files are broken or missing. W7 doesn't have a repair-install so starting over is the best bet. Nuking it from orbit is the only way to be sure. – Paul Jan 11 '12 at 3:19
a simple google search provides this – SeanC Jul 24 '12 at 18:51

I would give TDSSKILLER a go. You may still have a rootkit.

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