I have recently erased and overwritten a 3 TB hard drive using
dd if=/dev/urandom of=/dev/sdb bs=4096
multiple times. The data should be unrecoverable by now.
Unfortunately, tools like Recuva (for Windows) are still able to retrieve file names of files that used to be there. They cannot seem to restore most of them, although some very small text files can be restored.
From what I've read, they probably live in the MFT space. Small files can be in the MFT space completely.
Is there any way for me to access this MFT space and wipe it clean / overwrite it entirely?
I know of tools like Eraser, Bleachbit and CCleaner's "wipe free space" option, but I'm not sure if they do what I need?
Thank you!
