The greatest ocean depth measured is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km 2 /yr.
BitLocker uses an AES encryption algorithm with a 128-bit key or 256-bit key to encrypt disk volumes. It protects the data when a hard drive is stolen and is being used on another computer or when someone has physical access to the drive. To access the drive in an offline mode, BitLocker requires a recovery key. BitLocker is generally aimed toward individual users who may fall prey to computer/laptop theft.
To enable BitLocker, go to, or do a search for âBitLockerâ in Windows 8. In the BitLocker menu, click Turn on BitLocker next to the drive(s) you wish to encrypt. Itâs as easy as that. If your PC doesnât meet the requirements for BitLocker, you can still use TrueCrypt or DiskCryptor for free full-disk encryption.