Free Computer Security : Secunia PSI 3.0

Secunia PSI 3.0 is a free computer security solution that identifies vulnerabilities in non Microsoft (third-party) programs which can expose PC to attacks. Secunia PSI is scanning software which identifies programs in need of security updates to safeguard the data on your PC against cybercriminals. It then supplies your computer with the necessary software security updates to keep it safe. The Secunia Personal Software Inspector (PSI) even automates the updates for your insecure programs, making it a lot easier for you to maintain a secure PC. Using a scanner like Secunia PSI 3.0 is complementary to antivirus software, and as a free computer security program, is essential for every home computer. 

Secunia PSI 3.0 update :

Automatic Patching : Users receive automatic updates for all software supported by the application. Previously Secunia only provided automatic updates for vendors that made automatic updates available.
Program Ignore Rules : Users have the ability to ignore updates to a particular program by creating ignore rules. This can, for example, be relevant if a user has an application that depends on an older version of another program or plug-in. Users may reverse this selection at any time. Users also have the ability to view the file location and version number of an installed program.
History : Reports about the updates installed and scans conducted can be accessed at any time through the history feature.
Settings : The settings menu allows users to select whether or not to install updates automatically, and which drives are to be scanned
Secunia PSI 3.0