Cannot change anything on my External Hard Drive topic

I have my USB 3.0 External Hard Drive plug it in the USB 3.0 port, and i cannot change anything on it with a File Manger, for some reason it is Read only,
can you please help me with that Mad Catz.

Tried it with Total Commander 2 and get Re-mount Error, and tried it with ES File Explorer 3 and get Sorry, operation failed.

I download allot and i need the Apps to download it strait to my External Hard Drive, whats te point of using a External Hard Drive if i cannot
change anything on it.

And why can i not plug the USB 3.0 External Hard Drive plug it in the USB 3.0 port, and plug a USB 2.0 stick in the USB 2.0 port at the same time?

This problem is not with my cheap MeLE M9 Android TV BOX.


And yes i have installed the latest Firmware 0202 and also have rooted it.