Firewall also known as the Wall, is a network between the internal network and the external network security system, can prevent the virus intrusion. A bit Win7 system users want to change some of the firewall settings, the situation can not be changed, the system error "0x80074200", how to do? The following small series to tell you two solutions Win7 cannot change firewall settings prompts the system error "0x80074200" problem.
Method One:
1, the emergence of "firewall can not change some settings, error code 0X80074200" hint, in fact, in the presence of computer firewall settings problems, need to manually modify the meaning of the service strategy.
Method Two:
1, press the "Windows+r" on the keyboard, open the running box;
2, in the "Run" dialog box input "Services.msc", and then click "OK";
3, into the "Service Policy" settings panel, in the right "service local" inside find "Windows Firewall" option, that is, "Computer firewall" settings options;
5, find the "Windows Firewall" option, double-click the left mouse button, open the option Settings button, and then "General" inside the "Startup type" from "Disabled" modified to "manual";
6. After modifying "Disable" in "Startup Type" to "manual", try to turn on the firewall again, and the firewall will be opened successfully without prompting the firewall to change some settings, error code 0x80074200.
The above is Win7 cannot change firewall settings prompt system error "0x80074200" resolution, after the above settings, the firewall settings can be changed normally.