Want to be sure that the files you delete are unrecoverable? You must use Secure Eraser. You can choose to permanently delete individual files, folders, the recycle bin or reclaim the free space of the entire hard disk to completely destroy files that have been deleted over time but which could still be accessible.
For installation and usage guide: fribby.net/secure-eraser/?lang=en
Secure Eraser Official Page ascomp.de
Free Download of Secure Eraser in Italian (external site):
File
License terms
Files not hosted directly on daticloud.it, for the license check the information contained within the file.