Windows 10: Turn On or Off Auto-unlock for BitLocker Encrypted Data Drives in Windows 10

You can turn BitLocker Auto-unlock for fixed or removable Data Drives, on or off using BitLocker Manager, Command Prompt, and PowerShell. In this post, we will show you how you can enable or disable auto-unlock for a fixed or removable [...]

This post Turn On or Off Auto-unlock for BitLocker Encrypted Data Drives in Windows 10 is from TheWindowsClub.com.

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BitLocker: turn on auto-unlock without encrypting OS Drive (SSD)

I have the following configuration:

C (OS Drive) - SSD (128Gb)

D (Data Drive) - Normal Disk (1Tb)

D is encrypted using BitLocker but C is not encrypted.

I want to turn on auto-unlock on D, but get the following message: "The operating system drive is not protected by BitLocker Drive Encryption." - is there a way around this? I would ideally not want to encrypt my SSD.

I've moved my page file to D, but since the drive must be manually unlocked I get page file errors.

Thanks!

 

Turning on Bitlocker's auto-unlock on partitioned drive

I have Windows 10 Pro running on a 500GB hard drive which is partitioned into C: for Windows programs and D: where I keep my documents. I want to secure my documents and personal files from unauthorized access.

Anyone with a Linux bootable USB stick can boot a computer from the USB stick and then access all files on the hard drive. To prevent this I have used Bitlocker to encrypt my D: drive. The drive now cannot be accessed if laptop is booted externally.

I now want to turn on "auto-unlock", so that when I boot into Windows through the laptops' Window OS the D: drive is automatically unlocked. When I select "turn on auto-unlock" on the Bitlocker Drive Encryption screen I get the error message "The operating
system drive is not protected by Bitlocker Drive Encryption."

Why will it not allow me auto unlock the drive?

 

Failure to unlock BitLocker encrypted HD after new windows 10 installation

Hello Kostas,

Thank you for bringing up your query on Microsoft Community.

We sincerely regret for the inconvenience caused.

You can use BitLocker Drive Encryption to help protect your
operating system drive (the drive where Windows is installed), a
fixed data drive (such as an internal hard drive), or a
removable data drive (such as a USB flash drive).

The way you unlock an encrypted drive depends on two things:

• What kind of drive it is.
• What kind of unlock method you chose when you set up BitLocker on the drive.
  

I suggest you to refer to the following article and check if it helps.

Unlock a BitLocker-protected drive

http://windows.microsoft.com/en-US/windows-8/unlock-bitlocker-protected-drive

(Applies to Windows 10 as well).

Hope it helps.

Let us know the status, we are glad to assist you further.