I really need to restore my laptop back to factory settings because I screwed it up using ubuntu. How can I restore it?
closed as not a real question by Alvar, Eric Carvalho, Kevin Bowen, Mateo_, AgentCool Apr 7 '13 at 13:22
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Reinstall Ubuntu through a LiveDVD/LiveUSB, when you start the install processes you will be asked if you want to "Reinstall Ubuntu", and keep your files, or "Erase Ubuntu and reinstall" getting everything fresh and new (Everything will be deleted).
I recommend you to Erase your Ubuntu and reinstall, deleting everything, although if you need to keep your files and there is no way to backup them, then just choose to reinstall Ubuntu.
Things should be solved then!