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For BitLocker To Go encryption to be effective, you need to choose a complex password. For users who frequently move data between computers, the extra effort of entering the BitLocker password argues for the use of a simple, easy-to-enter password. Thus, the convenience factor often degrades the strength of encryption.
Microsoft evidently considered users’ convenience and integrated an auto-unlock option that allows the drive to unlock automatically when inserted into designated computers, eliminating the need for a password. This means you are free to choose a highly secure password without being burdened by its complexity.
The added benefit is you needn’t worry about forgetting the password. This best-of-all-worlds scenario optimizes convenience while ensuring maximum security for your data during transit.
There are two ways to configure the auto-unlock feature in Windows 8 Pro and Enterprise. The first is simply an option you select during the authentication process. If you overlooked this option, you can enable auto-unlock via the BitLocker manager. In either case, you need to repeat the procedure on each computer on which you want to unlock the USB drive automatically.
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Enabling Auto-Unlock During Authentication
Insert the USB drive and double-click the encrypted drive in File Explorer to open the authentication dialog. Enter your password, but don’t click Unlock yet.
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Enabling Auto-Unlock with BitLocker’s Manager
Insert the encrypted USB flash drive and unlock it.