Encryption changes data so that it is meaningless toanyone who does not have a key to unscramble it. For example, Hello might be changed to 2kdi&k4. After you encrypt data, only you and the people you choose can decrypt (unscramble) the information to make it readable again.
Use Privacy to encrypt and decrypt
e-mail and e-mail attachments,
any text that you can cut and paste, such as a
paragraph in an e-mail or the contents of a cell in aspreadsheet,
a directory, or
all user data on a removable disk.
If the above options do not provide enough security for you, download Access manager for Windows.
Access manager provides much more security than standard ways in Windows.
More articles about Security