@jackiemill87610 your tablet does not have a hard drive. All files etc. are stored on memory "chips" that are soldered on the circuit board. Here is how you get to the board [guide|77420|Samsung Galaxy Tab 3 10.1 Motherboard Replacement - iFixit Repair Guide|new_window=true]
To erase all the files/etc. you will have to get your tablet to power up and to reset it to factory default. The only other way is physical destruction of the IC's