Windows only: Freeware application DriveImage XML creates and restores images of any drive or partition on your system. That means that next time you freshly install Windows on your computer (whether XP or Vista), you can back up that clean and sparkling system state with DriveImage XML. If things get messy down the road, you can just as easily restore that fresh system state with the program's simple interface. We've given you the complete guide to system partition imaging and restoring from the open source perspective, but the freeware, Windows-only DriveImage XML offers a much more user-friendly alternative for the faint of heart.
DriveImage XML [via FreewareGenius]