I have Pentium 4 pc with three hard disk partitions "C", "D" & "E". Today I installed Linux Ubuntu and that corrupted everthing. "C" had Windows 98 SE, "D" Windows XP Pro and "E" was empty where I thought to install Linux Ubuntu. After that my XP could not load as it could not find its root. Also after Ubuntu's installation I was unable to see its data through my Windows 98 se which fortunately survived.I formatted XP as well as the "E" drive where I thought Linux Ubuntu was installed but to my surprise when I restarted the PC Grub selector again came up and Ubuntu was there. From Ubuntu I saw a small section of the harddrive where its data was present but I could not format it. Now I wish to format my complete hard drive including Linux Ubuntu and recreate three equal partitions (which I don't know since in technical terms I am a layman), reinstall Windows 98 se and Windows XP Pro which I know how to, and restore my system. I request humbly to the geeks here to please guide me step by step as to how I could do that as I am unaware of technical things and commands etc. I need your help! Please help me!