Secunia Personal Software Inspector (PSI) is a free tool which will scan your PC for outdated applications which might be compromising your security, then automatically locate, download and install and available updates it finds.

The program has always been easy to use, but PSI 3 takes this even further by greatly simplifying the interface. There's no list of installed software any more, no menus, no toolbars, no settings or anything else to worry about. All you have to do is launch a scan. PSI 3 then displays icons representing any outdated programs it finds, and these then change according to their status.

If the application can be updated automatically - Java, say - then it will be. The Java icon will be displayed with various captions ("downloading", "preparing update", "installing" and so on), and when it's done the icon will disappear.

If PSI needs a little more information to carry out the upgrade, then it'll ask for it. Our test PC needed a Firefox update, for instance, so we saw a Firefox icon with a "Choose language" caption. We clicked this, select "English", and that was all: the new version was downloaded and installed.

Several programs were captioned "Click to update", presumably because PSI didn't want to interrupt their regular operations (Skype was one, for instance). Just clicking the icon was enough to download and install the new version. And just one program, VLC Media Player, was captioned as a "manual update"; but even there, clicking the icon opened a browser window at the VideoLAN site, so downloading was a little easier than it would otherwise have been.

If you're an experienced user then this new approach may, if anything, feel too simple. There are no tweaks to apply, no advanced settings and options. You can't pause or prevent updates, should you need to do so. And you can't remove applications from the "need to be updated" list. (We tried right-clicking the icons, but nothing; this isn't that kind of program any more.)