



It takes a couple hours, so I assume it just does a Windows reset, then fills the rest of the free space on the drive with zeroes (just like using CCleaner or something similar) Should be easy to test, just do the reset/wipe, then run something like Recuva or TestDisk to see if it can find anything. Note that if you do Route A, it also gives you an option to remove files and clean the drive during the reset.
