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

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

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:

If you still receive error 0x8007042c when you try to turn on Windows Firewall, go to Method 2

Method 1: Troubleshoot Windows Firewall problems automatically

To fix this problem automatically, click the Fix-It image below. If a security notification appears, click Run.

If you still receive error 0x8007042c when you try to turn on Windows Firewall, go to Method 3

Method 3: Start Windows Firewall manually

You can start the Windows Firewall services manually and make sure that they start automatically in the future. To do this, follow these steps:

1. Click Start , and then type Services in the Search box.
2. Right-click Services. and then click Run as administrator. If you are prompted, enter your administrator user name and password, and then press Enter.
3. Scroll until you see Windows Firewall, and then double-click Windows Firewall.

Click the Startup type box,and then click Automatic.

1. If Service status is Stopped, click Start.
2. Click Apply, and then click OK.
3. Scroll until you see Base Filtering Engine, and then double-click Base Filtering Engine.
4. If Service status is Stopped, click Start.

1. Click Apply, and then click OK.
2. Restart Windows and confirm whether Windows Firewall is enabled.

If you still receive error 0x8007042c when you try to turn on Windows Firewall, go to Method 4

Method 2: Start associate services

To stop and then restart these services by using a batch file, follow these steps:

1. Click Start, type Notepad in the Search box and then click Notepad in the programs list.
2. Select the following text, right click the selected text, and then click Copy. Right-click anywhere in the Notepad window, and then click Paste.

   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

3. In Notepad, Click File, click Save As, and then type Repair.bat in the File name box
4. Click the Save as type box, and then click All Files (*.*).
5. In the left pane, click Desktop, and then click Save.

1. On the File menu, click Exit.
2. On your desktop, right-click the Repair.bat file that you saved in step 5, and then click Run as administrator.
   
   Important If you are prompted for confirmation to stop a service, press Y on the keyboard, and then press Enter.
3. Try to start Windows Firewall again. If you can start Windows Firewall, delete the Repair.bat file. To do this, right-clickRepair.bat, click Delete, and then click Yes.