Personal Computer World is giving away free Acronis True Image 10 Personal Edition! Though this is the older version, but hack, at least its a free legitimate software. Follow is a description of the successor.

Acronis True Image Home 2009 is an award-winning backup and recovery solution
for a good reason: it protects your PC after just one click and allows you to
recover from viruses, unstable software downloads, and failed hard drives.
Create an exact copy of your PC and restore it from a major failure in minutes,
or back up important files and recover them even faster.

To get the serial key, visit http://www.acronis.co.uk/mag/ati10pe
enter your email, and follow the link in the email they sent.

The software can be downloaded from the profile account registered using the same email.

Enjoy the software!