I love the new version of Avast Free 2014 because I'm so please to see Rescue Disk bootable media is back from the dead since we had Avast BartCD in the past, which is a huge plus for users you can create a Rescue Disk bootable media (USB, CD, ISO) for offline scanning and cleaning. The tool is built on Windows PE (pre-installation environment) and, as such, it is recommended to create the media on a clean machine.
Basically, you will be able to boot into a new environment loaded with avast! Antivirus, which can be used to scan and clean the infected machine. It is a very light version of the application that can only scan defined areas.
I'm very happy with this release along side with my other security features side by side with Avast, great job Avast.