Restore to Factory Settings

Yesterday I came back to my apartment and as I was walking through the door in to my room, I noticed a blue error screen on my computer. I tried countless numbers of restarts. I finally called Dell tech support and they told me I was going to need to pay a fee of $49 to fix it. I declined at the time. The next morning I woke up and tried to restart my computer again. It still did not work. When I got home later, I called Dell again and had them restore my computer back to factory settings. I have lost countless amounts of documents, pictures, music and more. The situation really is displeasing; the only thing I can look forward to is the fact that my computer now has a fresh new start. I can take this as an opportunity to start again with this "new" computer and hopefully not have to deal with another blue screen error.