{help} Encrypting Drives

Hello everyone here in TekSyndicate :)



Problem: Encrypt entire hard drives, even the drive where the system is.

Solution: I don't know yet, that's why i'm asking for your help. :)

Random searches, things that i found and questions:

TrueCrypt (Free software) --> Can encrypt drives, but can it also encrypt the drive where the system is and use it at the same time? I mean, using a completely encrypted system/pc, is it possible? 


Thanks for reading.

 PS: Maybe I didn't make you understand what i wanted to say? If not, tell me to do better because english is not my native lang. :)

Yes, when you encrypt the boot drive it just asks for the password on boot.

Can this be accoplished via "TrueCrypt"? Does it slow down your system, etc?

bump?