Question: how to do a backup dell5100? 

Answer: buy norton ghost software it is a complete backup solution that creates a "image" of your hard drive on a DVD or multiple Cd's exactly the way you left it and if something goes wrong all you have to do is put in in the cd or dvd drive and it will restore it for you. If you want to back up files I suggest getting Sonic Back-up myPC. Hope this helps!!
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