I have been using these software for a long time. Why use licensing operating systems when you can get it for free, I have provided some information below. Its easy to install and you don’t have to pay for the licensing.
Open source Operating Systems
http://www.ubuntu.com/ - Super-fast and great-looking, Ubuntu is a secure, intuitive operating system that powers desktops, servers, netbooks and laptops. Ubuntu is, and always will be, absolutely free.
Open source Office
http://www.openoffice.org/ - The Free and Open Productivity Suite
