Any help appreciated im running XP Home on a 2ghz P4, machine will not boot coming up with the error 'missing or corrupt file - ntfs.sys' cannot boot into safe mode same error comes up, have tried hanging hdd on another machine and replacing the file, also virus checked the drive while it was connected to other machine. Also tried using an XP disc to get to repair but it doesn't get that far, instead comes up with an error 7 during set up.