Win7 windows firewall service can not start how to solve?

In Win7 system, we all know that it has its own windows firewall service. In addition to protecting system security, many functions in the system also depend on the firewall service to be used. If the firewall can not start? How to solve? The following small series explain the reasons and solutions for the firewall can not be started.
Error type:
1. Click on the firewall in Windows 7 Control Panel “ recommended configuration & rdquo; no response.
2. Open “service”, can't start windows firewall, and report an error.
3. Open the “Event Viewer” and select “Windows Log” to find the most recent error. The event ID is 7024 and the log content is “Windows Firewall Service”. Due to denial of access. Stop with a service specific error.
Workaround:
1. In the Start menu, open “Run"Enter"regedit" to open the registry and navigate to the following subkey HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services in the registry. \\SharedAccess; then right-click SharedAccess and select “Permissions”.

2. In the “SharedAccess Permissions window, click “Add”.

3. In the text box below the input object name to select “ enter “NT SERVICE\\mpssvc”; then click on the right side to check the name ”.