Free PC Inventory is a freeware information tool that grabs details of everything about your computer, from the hardware components through to the installed software versions. It even offers up a list of processes that are running. It's the kind of tool that could be invaluable if you're trying to hunt down a driver or errant component replacement. Definitely one for the toolbox. Free PC Inventory does not require installation and can be used as a portable application. It can be run from a removable storage device such as a CD-ROM drive, USB flash drive, flash card, or floppy disk.