Do I need to do a back up my documents and information before installation of Mac OS X 10.6 Snow Leopard?

In other words, can I lost all my documents, information, e-mails, photos, etc. when I buy and download the new Mac OS X Lion?

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  • Best Answer:

    You should always back up all of your information before upgrading an operating system. Although "normally" everything will be ok... there is always a chance of a system corruption.

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