“0x8007042c” error message when you try to start Windows Firewall

Applies to: Windows 7 EnterpriseWindows 7 Home PremiumWindows 7 Professional


When you try to start Windows Firewall, you receive the following error if the Firewall service is disabled or if your computer is infected with malware:


To resolve this issue, scan for and remove malware by following the steps in Method 1.

More Information

For more information about Windows Firewall, go to Windows Firewall.

Microsoft offers Microsoft Security Essentials, a free security program that will help protect your computer from malware. For more information about Microsoft Security Essentials, go to Consumer Security Support Center.