The modern linux desktop operating system is not hard, especially Ubuntu and its offspring. Personally, I cannot stand Ubuntu with its Unity desktop management.  Kubuntu, Xubuntu, and Lubuntu are pretty well done with a more conventional desktop setup.

Mint linux (based on Ubuntu) steps up even more. Mint cinnamon, kde, and Mint Xfce are wonderful operating systems.

They all come in a live dvd format. Boot from the dvd and try out linux. If you like it, you can install with a few clicks right from the desktop.

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