


Then, you can restore the registry if a problem occurs. For added protection, back up the registry before you modify it. Therefore, make sure that you follow these steps carefully.

However, serious problems might occur if you modify the registry incorrectly. Important This section, method, or task contains steps that tell you how to modify the registry. Method 2: Add the Windows Firewall entry to the registry In the Windows Firewall dialog box, click On (recommended), and then click OK. Rundll32 setupapi,InstallHinfSection Ndi-Steelhead 132 %windir%\inf\netrass.infĬlick Start, click Run, type cmd, and then click OK.Īt the command prompt, type the following command, and then press ENTER:Ĭlick Start, click Run, type firewall.cpl, and then press ENTER. To install Windows Firewall, follow these steps: Click Start, click Run, type cmd, and then click OK.Īt the command prompt, type the following command line, and then press ENTER: Method 1: Call the "Setup API InstallHinfSection" function to install Windows Firewall
