Slide Show: 6 Full-Disk Encryption Products That Have Your Laptop's Back

There's one unfortunate but unavoidable reality of owning a laptop: It could easily be stolen. The very characteristics that make laptops most useful--size, weight and portability--render them easy targets.

Enter full-disk encryption software, which encrypts all data stored on the hard drive, including the boot partition and system files. Without a working password, a thief will find the drive both indecipherable and unbootable. This slide show walks you through six of the latest offerings from vendors including Microsoft and PGP.

Slide Show: 6 Full-Disk Encryption ProductsThat Have Your Laptop's Back