Don't use Truecrypt any longer for disk encryption.
The Sourceforge page you will see a notice about to stop using it. This random announcement comes on the heels of the crowdsourced audit of the source code was launched. The people behind the top free open source encryption software have stayed anonymous and there is no other info released by them regarding the weakness and they ask you to switch to bitlocker. Bitlocker was built into windows starting with vista and I wouldn't trust it Microsoft has a bad record of standing opposed to the government about privacy and building in weaknesses to the software please be vigilant about converting any encrypted data to a new program ASAP. Currently there are no free encryption software I could recommend. But here is a link to the top encryption software on the market today.