i am trying to undelete several partitions with hdm 12 on a hard disk. they were in fat and ntfs format. nothing probably happened to the data itself, but my brothers' inexperience in computers combined with aspirations made them mess with the boot sector and try to repair it. the finds that appear as the application searches are many, but of just two kinds so far: apple hfs and fat 12. the computer is pc and the system that was used to create those partitions is windows xp. the program has so far returned one io error message. feeling i had no choice, i selected ignore. is it the right move? what can the error mean? what should i do if the error reappears in the next parts of hte dard disk?