Download uBuntu Desktop 12.04 LTS + 13.10 (32bit + 64bit)

Download Ubuntu Desktop

You can choose between two options when you download Ubuntu for a desktop PC. Ubuntu 13.10 gives you all the latest features, while Ubuntu 12.04 LTS comes with extended support.
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Download Ubuntu desktop and replace your current operating system whether it’s Windows or Mac OS, or, run Ubuntu alongside it.

For extended support,
choose Ubuntu 12.04 LTS

Ubuntu 12.04.3 LTS is a long-term support release. It has continuous hardware support improvements as well as guaranteed security and support updates until April 2017.