Truecrypt is a tool which can create a virtual encrypted disk of any size.
In Windows, a truecrypt file (*.tc) looks like a normal data file. But in fact, it is encrypted container file and can be mounted as a drive where files can be accessed normally. And ss soon as drive is unmounted, then one cannot access the files any more.
A truecrypt file can be copied onto USB, making it great for protecting files while travelling.
Another use for truecrypt is to use it for protecting your backups.
Screenshots are available.
Truecrypt is available also for Linux and Mac Os.
Advanced use
- Full disk encryption.
- Command line parameters.