When I got my Desktop assembled by a vendor, he partitioned the hard drive such that I had both Linux as well as windows as OS. I am not sure but I must have set aside 5-6 GB for linux and the rest for windows. I have three (I guess logical) partitions that is visible in windows C: D: and E:. I have installed win98 in C:, Win XP in D: drive. While booting I had the option of linux or win as OS, then secondary choice between win98 & XP. I completely lost linux while reinstalling win98, I must have overwritten the bootloader or something. The entire disk space set aside for linux is lost for ever. Now I want to repartition the hard drive and format the disk and recover all availbable space on hard disk (40 GB). A friend tried his hand at this and messed up. Using floppy disc he deleted all the extended and logical partitions and now I have the fdisk showing only 34 GB. He had no idea about what primary, extended & logical partitions are. How should I proceed from here without taking professional help?