Ja som zaryty Ubuntak (jeho plus - user friendly as much as possible), takze odporucam nove (verzia 12, 13) Ubuntu ak mas nejaky ten dualcore pocitac; ak mas slabsi pocitac tak posledne (verzia 12, 13) XUbuntu.

Stiahnut image:
http://www.ubuntu.com/download/desktop
http://xubuntu.org/getxubuntu/

Keby chces bootovat z usb:
https://help.ubuntu.com/community/Installation/FromUSBStick
(alebo googli "nazov usb", navodov je viacero druhov)