Windows® Security Center and Firewall in Windows® Vista
Firewall does not show in Windows® Security Center in Windows Vista.
A firewall in general, prevents your computer from being accessed by malicious software , worms , etc. through the network to which it is connected. It also does the opposite i.e. prevents your computer from sending malicious software to other computers. Windows Vista® regularly checks to ensure that your computer has a firewall installed and turned on. If it is not installed or turned on, it keeps issuing notifications regarding the same in the notification area. In the Windows® Security Center you can see the status of the firewall. In general, the computer detects the firewall by a firewall and you still receive a notification, it's possible that Windows® did not find your firewall or the firewall did not report its status to Windows®. Use the following steps to stop receiving this notification. You should only do this if you are sure that your computer is protected by a firewall.
- Firewall is not at all detected by your computer
- Firewall's status is not properly detected by computer i.e. it remains off
- Tips to further resolve this issue
Firewall is not detected by your computer
Usually the computer detects the firewall and displays the status in the Windows® Security Center. But many-a-time, it does not detect a third party firewall or it may not be properly detected i.e. it may show it turned off. There can be a number of reasons it doesn't at all show up in the Windows® Security Center. The most common is to have both the Windows® and the third party firewall on, in which case it shows only the Windows® Firewall. This is generally not recommended and you should generally keep only one of the firewalls on to avoid conflicts that might affect your security. It is also possible that the firewall did not report its status to Windows®. In that case you should know that Windows® does not detect all firewalls. So, if you are sure that you have a firewall installed and turned on, you can click ‘Show me my available options’ to stop receiving notifications from the Windows® Security Center about your firewall. Windows® stops monitoring your firewall status and stops alerting you if it is off. But you should only do this if you are sure that your firewall is installed and working properly. The last section on the details shows you how to turn off the notifications.
Firewall's status is not properly detected i.e. it remains off
Sometimes the firewall is detected but its status is incorrectly detected. This is mainly because of a bug in the Windows® Security Center repository to automatically delete the files. For this go to services by typing services in ‘Search’ and then stop the WMI (Windows® Management Instrumentation) service. Then delete the repository folder in 'C:windowssystem32wbem'. Then restart the WMI service. The system takes around 15 minutes to rebuild the repository. So wait and then reboot and then check your Windows® Security Center. Now, if the firewall is not on, you can just switch it on. If this problem happens again, you can try getting the latest service pack for Windows Vista and reinstall the firewall.
If you want to stop your computer from issuing notifications about your firewall even though there is a firewall installed and working, you can follow the guidelines given here. Open Windows® Security Center (Click on the ‘Start’ button, click on the ‘Control Panel’, click ‘Security’, and then click ‘Windows Security Center’). Then under the firewall option click ‘Show me my available options’. And finally, in the Windows® Security Center dialog box, click ‘I have a firewall solution that I'll monitor myself’. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. The Windows® Security Center will now display your firewall settings as ‘not monitored’, and you will no longer receive notifications about your firewall. But, you should do this only if you are sure your firewall is working properly.