Sorry I need to be more specific. The laptop was previously installed with Vista 32 bits. When I got the ubuntu live cd or w/e it gave me the option to (permanently?) remove my old OS and make Ubuntu as the primary OS. However, I do not like Ubuntu and I am unable to switch back to Windows. When I put the Windows installation CD, it says that it can not find any hard drive. Guys please help. I'm new to Ubuntu and everything so I don't know what to do.