Nope, no way to keep your information unless you leave the information you have on one hd and partition it there, and do a Fat32 format on another partition... but after you switch from fat32 to ntfs or vice versa, you can no longer access that information on the old format... And why switch to fat32? unless your HDD is less then 25gigs or you need to run old software, it'll just slow your computer down. Cheers.