#3893
VeraCrypt is a free and open-source disk on-the-fly encryption (OTFE) software with strong security for Windows, Mac OS X and Linux platforms. It was developed by IDRIX from France, born as a branch of the highly-acclaimed but discontinued TrueCrypt project in 2013, but more outstanding than TrueCrypt.

#2553
Any deleted files, as long as they have not been overwritten, in theory that is completely can be recovered, of course, that needs to pay the corresponding cost. Therefore, for very privacy data, such as photo, video, office file... you'd better use special software to shred them rather than just right click to delete.

#574
Like WipeFile, WipeDisk is powerful and free file deleting/destroying applet, easy, secure and fast! The difference is, WipeDisk can delete all files on physical and logical disks (including complete hard disk or single partition).