Encrypt external hard drive with BitLocker to go

The following is assumed for the description below:

Trusted Platform Modules (TPM) 1.2 or higher available (see Checking Trusted Platform Module (TPM) for verification)
If TPM 2.0 or higher: BIOS configured as “native UEFI” (see Verifying BIOS mode for verification)

Press the Windows key.
The start menu will open.
Type Manage BitLocker.
The Manage BitLocker tab will be shown.
Click on the Manage BitLocker entry with your name.
The BitLocker Drive Encryption window will open.
Check whether your external hard drives have already been encrypted (BitLocker on). In the example, C: and G: are already encrypted, E: isn't yet.
Expand the entry.
Click on the Enable BitLocker button.
The BitLocker Drive Encryption window will open.
Select a method for unlocking the drive (e.g. Use a password to unlock the drive).
This drive will be unlocked once the password has been entered.
Click on the Continue button.
Window changes to selection of a restore method.
Select a method to back up your recovery key (e.g. Print recovery key).
The recovery key allows you to access your drive if you forget your password or lose your USB flash memory/smart card.
Click on the Continue button.
Window changes to the selection of how much memory space you wish to encrypt.
Select the Encrypt entire drive option for higher security.
Click on the Continue button.
Window changes to selection of encryption mode.
Select the BitLocker Verschlüsselungsmodus - Kompatibler Modus [offen] option for compatibility reasons.
Click on the Continue button.
BitLocker encryption is ready.
Click on the Start encryption button.
Drive is encrypted. This may take several hours, depending on the size of the drive.

Drive is encrypted and the database is therefore protected against unauthorised access.