There is a great problem with my computer, i've got 5 partitions on my computer.but i can only open 2 of them using double click . Even if i explore them it wont open. that gives error message, "hsyo.exe has encountered a problem and need to close". i reinstall windows xp but it diidnt work. i cant give full format to the hard disk since it has some important data. Can anybody give me a solution.