How to Reset a DLL with Windows Firewall

1. Click the 'Start' globe. Type 'cmd' into the search box and then press the 'Enter' key.
2. Wait for the Windows Command Prompt screen to appear. Type the following at the Command Prompt:'RUNDLL32.EXE <dllname>, InstallHinfSection 132 C:\WINDOWS\INF\SHELL.INF'Replace the '<dllname>' variable with the actual file name of the DLL that is causing the Windows Firewall exception error.
3. Press the 'Enter' key. Wait for Windows to reconfigure the DLL file and add it to the Windows Firewall DLL exception list in the registry. Restart the computer if prompted to do so.