I'm cross-posting this, as it's germane to this thread as well...
Knoppix is a CD-bootable Linux distribution, so no installation is required. It includes Internet, graphics (
The GIMP), office software (
OpenOffice.org), games, and more. If you can access the BIOS to set it to boot from the CD, you're all set; if not, you can create a boot floppy and go from there. Although the hard drive icons appear on the desktop, the drives are not mounted until you either left-click on the icon or right-click and select
Mount. Similarly, write-access is turned off by default, but can be turned on.
Knoppix is excellent for checking out Linux, but it can also be used as a rescue disk for Windows, as it has drive-imaging and partition-editing utilities. It's quite useful. I'm using it right now to post this message. The CD makes a good install-disc, as well.
It's free. The download links are available on the main site
http://www.Knoppix.com and the unofficial support site is at
http://www.Knoppix.net, which I frequent as
Loper.