Win7 open firewall failed prompt 0x8007042c error how to solve

Method 1: Start the Windows Firewall Service

1. Click the "Start” button, type “service” in the "Search Programs and Files" box, the list of programs that come out Click “Services”;

2. Open the “Services” window and find the item named “Windows Firewall” in the box, double-click to open;

3, enter “General” tab setting interface, click the triangle arrow button of the startup type, open the drop-down menu to select “automatic"item;

4. If the service status is displayed as “ stopped” , then click the “Start” button, and after all the operations are completed, click the “OK” button to make the settings take effect and close the service window.

Method 2: Start related services

1. Right click on the blank space of the desktop, the shortcut menu will pop up to “New”, and click ““ text in the next menu” Document & rdquo; to create a new text document. Or click the "Start” button, type “Notepad" in the "Search programs and files" box, click on the list of programs to click “Notepad”item;

2, open the text document or notepad, copy the following code;

sc config MpsSvc start= auto;

sc config KeyIso start= auto

sc config BFE Start= auto

sc config FwcAgent start= auto

net stop MpsSvc

net start MpsSvc

net stop KeyIso

net start KeyIso

net start Wlansvc

net start dot3svc

net start EapHostnet

net stop BFE

net start BFE
< Net start PolicyAgent

net start MpsSvc

net start IKEEXT

net start DcaSvcnet

net stop FwcAgent

net start FwcAgent

4, click on the menu bar & ldquo; file & rdquo; & mdash; & mdash; & ldquo; save as & rdquo; command;

5, pop-up "Save as & rd Quo; window, enter any name with the suffix bat in the file name box, then select the location where the batch file is stored, and click the “Save” button in the system city, and finally double-click to execute the batch file, if you If you are using a non-system built-in administrator account to log in, you need to right-click "Run as administrator" batch file.

Method 3: Remove malware

1. Please go to the official website of Microsoft Anti-Virus to download and install “Microsoft Security Essentials”, and then execute the “Complete Check and Kill” function;

2. After performing the scan, click “Start”, click “Control Panel"""Windows Firewall”;

3, on the left In the pane's Control Panel, click “Turn Windows Firewall on or off;

4. Make sure that under the “Home or Work Network Location Settings” and “Public Network Location Settings” option Select “Enable Windows Firewall”