ClamWin is a simple, powerful and most importantly, free antivirus checker for Microsoft Windows.

The program features an easy to use GUI and the developers claim high detection rates for viruses and spyware although it doesn't seem to find anything extra or beyond what other anti-virus scanners find. The full program is facilitated by regular virus database updates so that's its generally always updated with the latest threats to your system. Unfortunately ClamWin Portable has scheduled scans and updates disabled so that the program is not locked in huge updates every time you activate it on the move. The downside of this of course is that it's never up to date with the latest threats. The big advantage of this version of course is that you can take it pretty much anywhere on a USB stick. However, the program does not feature a real-time scanner which means that scanning for protection is down to you. You have to manually scan your system with the program every so often to see if you have been infected with anything.

Free, portable and easy to use, this is a decent anti virus solution let down by the fact that it doesn't scan in real time nor update itself automatically unless prompted.

Download ClamWin Portable 0.93.1 in Softonic

System Explorer Portable is a special version of the excellent task manager System Explorer that you can carry around anywhere with you in your USB memory device, and run it right away on any computer.

Like its older cousin, System Explorer Portable is a much more complete, reliable and advance task management tool than the standard app that comes bundled with Windows. With this full-featured system analyzing tool you can take a sneak peek at everything that's going on in your system, from currently active processes to installed drivers, including also network collections, startup applications and Internet Explorer add-ons, if you have any.

But System Explorer still has an ace up its sleeve: not only does it let you see what's brewing in your system, but also take action. This means that you can end any active process or delete items from the startup menu, to name a couple of examples. Another feature I especially liked is the possibility to obtain more information about any given process from Google and ProcessLibrary.com, or check it for viruses with an online antivirus tool. The program includes loads of other interesting features, but unfortunately lacks documentation about them so you'll have to learn how to use them on the move.

System Explorer is a full-featured task and process manager that gives you an exhaustive view of all the activities currently going on in your system.

Download System Explorer Portable 1.4 in Softonic

Have you ever wanted an open-source portable anti-virus solution that you can use anywhere at anytime?

Protect Simple Machine is just that - a portable and free anti-virus app that fits on your USB pen and makes sure that the computer you are using is not infected by viruses, worms, Trojan horses or spyware. Created with Visual Basic, the program is incredibly simple to use and can analyze any folder or disk you choose. It also advises you on ways to "tweak" Windows so you can optimise Protect Simple Machine for more effective, faster use. It also has direct links to other Windows tools such as the command line.

Nowadays, one of the most important areas to scan is the memory and Simple Machine Protect also caters for this with a memory scanner which works alongside the disk scanner. The program warns you if it finds a virus with a very primitive "beeping" sound and it can sometimes repair them on the spot, depending on whether the database is equipped with a sufficient solution. At all times, the program lets you know at what stage the scan is at with a progress bar.

A very convenient solution for those on the move although it's a bit lightweight and tends to miss minor viruses and Trojans that more solid scanners pick up.

Download Simple Machine Protect 1.5.5.580 in Softonic

Portable Office Exec is somehow a software toolbox: a pack of utilities that has been especially designed to be stored and run in a portable USB memory stick, so that you leave no trace of usage in the host PC.

The pack's contents are organized in tabs and range from antivirus tools to recording utilities, featuring also web browsers, e-mail clients, antispyware tools, image viewers, music players, text editors and a lot more, all for free.

When you run Portable Office Exec for the first time you must download the utilities (that is, the ones you want to include in your pack). Once downloaded, they'll be always available for you on your USB key.

Download Portable Office Exec 1.2.6 in Softonic