Malfunctioned Firewall

[Patrickboy]

I am not able to enable & disable my firewall. I tried it many times but still things are not working. I think my computer got infected. Because recently i purchased an cable net. So either i need to reinstall the OS to get rid of it.
Or is there way to put the firewall on.

[Alexander102]

First tell me what is the name of Anti virus installed in your PC. It can be a conflict between the applications.

[Alexis25]

My friend you computer is prone to virus. The virus has malfunctioned your Firewall service. I am mentioning the complete steps to Fix your Firewall problem. This one is really gonna work....

Normally the viruse create changes is the registry of windows which result in malfunctioning of Firewall. The on off feature of Firewall turns grey out. Even after scanning from an Anti virus some changes are not restore. So it has to be manually restored.

First take a back up of your Registry file. ( regedit.exe )
Click on Start Menu > Run > Type " regedit.exe "

Scroll to following :
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile]
"EnableFirewall"=dword:00000000
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile]
"EnableFirewall"=dword:00000000

If values of the above key is set on 0 the the firewall controls will not work. Just set the Values on 1, it will enable you firewall controls.

After changes restart your computer. Now you will be able to configure your Firewall.

[Patrickboy]

I am using Mcafee Internet Security 2009

[Alexander102]

You need not to worry about your Firewall Issue. Because Mcafee has its own Firewall Service. It Disable Windows in built Firewall in order to avoid third party conflicts

[Walter89]

Try this,
Click on Start Menu > Control Panel > Windows Services and and enable the FW/ICS service. Or

Right-click My Computer > Manage > Services

Some of the feature might be disable due to other applications.