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well title says all most everything. I am using ubuntu 12.10. Installed using windows installer. Is there anyway to upgrade it? Any how much data i will lose? I have installed some softwares and there is some docs.

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marked as duplicate by Achu, Kevin Bowen, Braiam, Warren Hill, Radu Rădeanu Aug 31 '13 at 14:33

This question was marked as an exact duplicate of an existing question.

Take a look at Upgrade from Ubuntu 12.10 to 13.04. – Mitch Aug 30 '13 at 19:10

Just boot from any boot-able medium. You'll find an upgrade option, follow that. You'll loose nothing if you choose an upgrade.

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