Folders are being created by 7 on my external harddrive having nonsensical names (like "08f575abff5110a011" for instance). I try to delete them, but it says I need permission to delete them. Then I open up the command line in administrator mode and try to delete them, but it does nothing. It acts as if it's deleting but then it doesn't disappear. The only way I can delete them is to boot into XP, which is annoying. Does anybody know how to fix this?