How do I remove Mavericks from my startup disk so I can download Yosemite?

I want to update my computer to the latest operating system, but it says I do not have enough space. I tells me to delete what is on my startup disk, Mavericks, and then try download it. I do not know how. HELP!

MacBook Air, OS X Mavericks (10.9.3)

Posted on Nov 7, 2014 5:55 AM

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How do I remove Mavericks from my startup disk so I can download Yosemite?

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