Is there a program Or a site that can tell me how to put my computer back to factory settings?

I tried to download WOW, twice. And each time my mom or someone would get on when it was nearly done *I was asleep the first time, and at school the second*get the computer frozen and shit. Well now I have about 4gb of memory taken off my computer with no way to delete it*analyzed my computer's memory and it has that much memory still taken even though I deleted the document*

Besides that, for reasons that not any of the technical people at dell or my web provider could identify, nor any of my computer friends, I have files that were downloaded on my comp that WILL NOT COME OFF.

So if anyone knows how....I could really use this help.
wayoftheleaf Reviewed by wayoftheleaf on . How to do a restore to factory settings? Is there a program Or a site that can tell me how to put my computer back to factory settings? I tried to download WOW, twice. And each time my mom or someone would get on when it was nearly done *I was asleep the first time, and at school the second*get the computer frozen and shit. Well now I have about 4gb of memory taken off my computer with no way to delete it*analyzed my computer's memory and it has that much memory still taken even though I deleted the document* Besides that, for Rating: 5