Hi, I have three questions. 1. Which algorithm is better to use in term of security? a. AES b. Serpent c. Twofish d. AES-Twofish e. AES-Twofish-Serpent f. Serpent-AES g. Serpent-Twofish-AES h. Twofish-Serpent 2. How do I decrypt a volume like a D drive in the HDD or a usb Flash drive without formatting the drive and preserving the files? 3. What are the cons of encrypting the system? Any answer and explanation would be heartily welcomed.