I have an external hard drive I was trying to cut off permissions to view it under any account but mine. I went to "security tab" and must have done something wrong because then when I would look at "My Computer" it would show my external hard drive but wouldn't give any information all it said was NTFS. If I'd try to open or anything it'd say access denied (although i am administrator.) I went back to security tab and the 2 users it shows is "SYSTEM" and "ADMINISTRATORS" both say full access but I can't view the hard drive files. I went in under safe mode and tried to view it and it let me open the hard drive to view all folders in it.. but I could not open any of the folder beyond that point. Now back in normal windows mode when I view "My computer" I see this Computer management -> Disk management now shows this Before I mess this up more, can someone please help!