just type
attrib -h -r -s /s /d j:*.*
where j is the drive letter... unlocks all the locked stuff in j drive
if u want to make it specific..then go to a specific location using cmd and then type
attrib -h -r -s /s /d "foldername"
it can also be used to lock drives or folders just alter "-" with "+"
attrib +h +r +s /s /d "foldername"