Ok this is really a significant improvement!!!
I really love the pre-boot authentication.

download links below

New features:

• Ability to encrypt a system partition/drive (i.e. a partition/drive where Windows is installed) with pre-boot authentication (anyone who wants to gain access and use the system, read and write files, etc., needs to enter the correct password each time before the system starts). For more information, see the chapter System Encryption in the documentation. (Windows Vista/XP/2003)
• Pipelined operations increasing read/write speed by up to 100% (Windows)
• Mac OS X version
• Graphical user interface for the Linux version of TrueCrypt
• XTS mode of operation, which was designed by Phillip Rogaway in 2003 and which was recently approved as the IEEE 1619 standard for cryptographic protection of data on block-oriented storage devices. XTS is faster and more secure than LRW mode (for

…

My business requires me to safeguard the security of certain files. For years I have used Encrypted Magic Folders (EMF) from PC-Magic to encrypt those files, and to hide them from the view of an interloper. I loved it, because files were always encrypted on disk and yet were fully accessible to applications. However, when I upgraded to Vista 64, the new EMF crashed my system so completely that it was unbootable even in safe mode. I tried it twice, recovered twice with some difficulty, and gave up on EMF.

In the meantime I had heard about TrueCrypt, an open-source disk encryption package for Windows and Linux. It’s free! I must admit that after I downloaded it, I needed some time to get my mind around it.

Here are the basics:

• Using the TrueCrypt application you create a large “container” file on your system, larger than you will need to hold your encrypted files. It can be on any read/write disk, even a memory stick, and is initially filled with random data.
• The container file can be copied, moved, deleted, or renamed just like any other file. It’s not fragile.

…