This topic has probably been posted here before, but I couldn't find it in the forum. My daughter was given an older model Gateway, Pentium4, 1400MHz, 383MB RAM, NVIDIA GeForce2 MX/MX 400. She took it to a local computer store where they uninstalled Windows ME AND installed Windows XP Home. She then brings it to me to do a little tweaking. Found the HD is FAT32 file system and would like to convert it to NTFS for obvious reasons. Have flashed BIOS and other firmware, but have never converted a partition. I know XP has CONVERT.EXE for this purpose and the command is "convert c: /fs:ntfs". Have read it is important to realign the partition before conversion, by moving all the data area up to a 4K boundary, which can be done with a program downloaded from "BootitNG.com". If realignment is not done before conversion, the partition will end up with 512 byte clusters. Would like to know if 512 byte clusters is a bad thing or not, what effect it would have on performance (my daughter is not a power user). Also, would realigning the partition cause data loss or would the conversion cause data loss, and if so what data should be saved - Program Files, C:Windows, Doc and Settings? Have read many have done this conversion without data loss and I realize anything can go wrong. If I make a mistake, there goes my Father's Day gift! Don't need to hear any horror stories about converting, heard plenty of horror stories about flashing BIOS, but I did it without a hitch following the instructions to a T. Any help one could give this old Nam vet will be greatly appreciated.