Secunia PSI

You have to make your PC safe and Secunia PSI is the tool which will help you make it.

Secunia PSI tracks known vulnerabilities in software and operating systems and includes them in its database, then, when you install it in your system and run it, it will detect the software you have installed and will warn you about outdated and insecure apps on your PC.

Not only will it warn you about the fail but it will offer you the solution or a link to the patch which solves your problem.

Of course, that database is shared by millions of users and the info about your system is sent to Secunia's servers (not your data, only the system failures and solutions).

If you want to feel safer, download and install Secunia PSI , it will become your Personal Software Inspector.