It’s important to patch and update your applications as security problems are discovered and fixed. However, not all applications will update themselves automatically, and it’s hard to keep track of each and every one of them.
Secunia Personal Software Inspector (PSI) is an app that automatically detects and installs missing security updates on your Windows computer (or you can opt to manually scan and install if you prefer).
Secunia PSI is an excellent tool to have on your personal computer, and is a valuable extra layer of protection against insecure programs. There is even a quick instructional video on YouTube to get you started.