Hi everyone. hope I'm posting in the right forum. I have a big problem with my hard disk and I'm desperate that I think I lost my work and personal work data's. My problem is that my partitions are unknown and can't install winXp without formating my C. Please let me start with the begining. I have two HDD, one of them is of 160GB, this hardisk is split in 3 partitions: C: (almost 9GB) contain WindowsXP D: (130GB) contains all my work E: (16GB) contains 16GB free And the other hardisk: H: (500GB) Everything started when I installed Partition Magic 8.05 boot disk in C. After I instaled the software it poped up to restart windows. Restarted windows and almost when I can hit F8 to enter in save mod (after the winxp loading logo) it poped up a white screen boot disk 16 colors picture and 3 options boot WinXp boot Win9x boot WinXp Clicked the first options, everything good entered in winXp, entered in My computer to find that D and E missing. All I could see was C and D (d beeing the 500gb hardisk). Restarted computer, booted from XindowsXP cd and in that popup screen on what partition to install winxp seen that C: 9G is ok D: 130 os2/ unknows E: unknown and H: ok Here I formated the E drive that contained the 16gb free. restarted computer and after loading the ide drives etc the screen is now black with a _ flipering. Can't enter in WinXp no more. Restarted again and booted again from the winxp cd to find that the partitions now are C: 130 GB D: 22GB unpartition space H: unknown Here I made the 22GB partition available to install the winxp again but with no luck, it said that it must put some files on the H partition, tried with C and same thing. Turned off the computer and unpluged my 500 hardisk (H). Booted again to find out that now only C is visible C: 130GB (10 mb free) Restarted booted again and entered in winxp repair mode by hiting the R key. Here I typed makepart or something like this Lucky D 22GB was available as unpartition space and 130GB (10 mb free) was intact. Made available D by formating it and restarted. Booted again to try to install winXp again now that the big HDD H is out. No luck when I try to install on D it says that it most format C, when I try on C it says that is to small press enter to continue to say that C is a partition unknown or dameaged. Please help me.