hey, could you tell me more info so i know how the files became corrupted and why your trying to backup the winnt directory (im assuming you already got the rest)? also, is this hard drive failing? and the hard drive diag could not repair the sectors, which may contain these directories/files that are corrupt? if you just need the data off that hard drive to copy to the other hard drive, winnt and windows in both 2000 and xp just contain the OS, the data that belongs to users, such as their documents, etc. is under "documents and settings." if this hard drive is not failing, and you wanted to boot off the drive again after you get your important data off, you can run the windows 2000's "repair" install, which will install 2000 right over itself and fix those corrupted files(providing the drive is not failing). another option once you get your data off is to format the drive(providing it is not failing) and reinstall from scratch. As i said before though, winnt is primarily the OS since most "data" is under "documents and settings', or under "program files", with a few remaining under the root directory.