That is Windows (Vista or Seven, you haven’t said). So what you with that question? Let it so to resolve the problem. If you did, then what happens? Have you rebooted the computer after that “fix” is completed?

If that doesn’t work…

…Since you are using Avast Internet Security (AIS), you may want to save the registration file (or at least know your email address where you received it), then download the AIS setup.exe from Avast, and the Clean Uninstall Utility. After that follow the instructions for a Clean Uninstall under Windows Safe Mode and reboot to install Avast from scratch.

In ANY case, once you solve the “Unsecured” problem, you should scan your system.