How to turn on the Windows Firewall?

I have an important message, I turn on firewall (important). I tried to turn on the firewall, I have cd no not because I do not know how to do it. My antivirus is panda. Please tell me I can turn on the firewall to save my PC. Thank you.

* original title - firewall can not turn on *.

Hello

1. what operating system is installed on your computer?
2. don't you make changes to your computer before the problem?
3. you have any third-party firewall installed?

I would like you to follow the steps mentioned in this link that talks about the activation of the firewall.

http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-performance/error-0x8007042C-cannot-start-Windows-Firewall/8c42b8ff-6a97-4590-91a3-02d652fec0a8

See also:

Windows Firewall
http://Windows.Microsoft.com/en-us/Windows7/products/features/Windows-Firewall

Tags: Windows

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