Cannot access firewall settings

Suddenly one of my client computers could not being accessed from the network. I thought it must be something wrong with the firewall setting so I try to open firewall setting in control panel, but every time I tried to open firewall setting it always said, ”Due to an unidentified problem, Windows cannot display Windows Firewall settings.”

What’s wrong with the firewall? It appeared because of a virus or Malware corrupts SharedAccess.reg file. The SharedAccess.reg file represents the Windows Firewall service. In this several days I indeed always try to remove some virus that infect that computer, after removing the virus it appear to effect the network sharing.

How to fix it?
Call the “Setup API InstallHinfSection” function to install Windows Firewall.

To install Windows Firewall, follow these steps:

1. Click Start, click Run, type cmd, and then click OK.

2. At the command prompt, type the following command line, and then press ENTER:

Rundll32 setupapi,InstallHinfSection Ndi-Steelhead 132 %windir%\inf\netrass.inf

3. Restart Windows,

4. Click Start, click Run, type cmd, and then click OK.

5. At the command prompt, type the following command, and then press ENTER: Netsh firewall reset

6. Click Start, click Run, type firewall.cpl, and then press ENTER. In the Windows Firewall dialog box, click On (recommended), and then click OK.

Ok, now I can already access the firewall settings, sometimes after step2 you can jump to step 5 without restarting the computer, but sometimes need to restart .