It is distributed as four Live DVD ISO images, supporting the GNOME and KDE desktop environments, as well as both 64-bit and 32-bit architectures. Thanks to Softpedia, users can still download BackTrack Linux and install it on their personal computers or laptops. Distributed as 32-bit/64-bit Live DVDs with GNOME and KDE It has been officially discontinued in February 2014. BackTrack was an open source Linux distribution that could be used by security professionals for penetration testing and digital forensics tasks in a native computing environment dedicated to hacking.