This is especially useful if you have a laptop that you transport around a lot or if you travel for a living. Without this password, the entire hard drive is encrypted and secure and any attempt to access the data will be useless. After this process is complete, each time the computer is started, you will need to enter a password to allow the machine to boot. The actual encryption part of the process initially takes up to a few hours, but it processes in the background and the user hardly notices. It’s fairly simple to install and only takes a few minutes. I use this on a lot of my client’s computers. On-the-fly encryption means that data is automatically encrypted right before it is saved and decrypted right after it is loaded, without any user intervention.” – TrueCrypt “TrueCrypt is software for establishing and maintaining an on-the-fly-encrypted volume (data storage device). I have found this very useful if you have sensitive data on your workstation or laptop that you want to keep secure. It’s called TrueCrypt, and I can’t say enough good things about it.

I have found an amazing free tool to encrypt your laptop or PC and secure your data.