Difficult to change the firewall settings

Running Vista basic 32, I've been running MSE for some time now and only a few hiccups.  But now I need to open some ports in the firewall, and I can't seem to him.  It gives me an error similar to others I've seen here for Windows Defender; service will not start, the service does not exist..., etc..    I know that the firewall is still running (it keeps blocking of programs "authorized"), although Security Center said that it is not on.  So, how can I get around this to make adjustments to Windows Firewall?

Hello

1. What is the full/exact error message?

2. When you receive the error message?

3 when you get the following error "Windows Defender; service does not start, the service does not exist'?

4. you try to turn on windows Defender?

5. you have any security software installed on the computer?

Make sure that the Windows Firewall is enabled. Check out the link.

Enable or disable Windows Firewall
http://Windows.Microsoft.com/en-IE/Windows-Vista/turn-Windows-Firewall-on-or-off

You can consult the help below link and check if it helps.
Open a port in Windows Firewall
http://Windows.Microsoft.com/en-us/Windows-Vista/open-a-port-in-Windows-Firewall

For your reference:
Firewall: Frequently asked questions
http://Windows.Microsoft.com/en-us/Windows-Vista/firewall-frequently-asked-questions

Check the status of Windows defender service and make sure that it is started.

1. Click Start, type Run. (You can also use Win Key + R)

2. type services.msc in the run.

3. right click on the Windows Defender service and click Start.

Check out the link.

Impossible to activate the application Windows Defender in Windows Vista

http://support.Microsoft.com/kb/555962

It will be useful.

Tags: Windows

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