Windows 10: Is it possible to auto-unlock Bitlocker on a non-TPM laptop's 2nd drive

I'm aware it isn't possible with the boot drive (so password is necessary), so I'm asking about the secondary drive.

I found an old laptop (Toshiba Satellite P755 with 2nd Gen i7) from work, which doesn't have TPM along with a 128GB SSD. And I'm planning on making its 500GB hard drive the secondary drive. Company policy requires Bitlocker enabled on internal drives.

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:)

 

How to Use Bitlocker on Only Non System Drive and without TPM


I want to use Bitlocker on my Non System E Drive without TPM. I read somewhere to do the following for without TPM:

" Under Local Computer Policy navigate to Computer Configuration \ Administrative Templates \ Windows Components \ Bit Locker Drive Encryption \ Operating System Drives and double click on Require additional authentication at startup." and so on.

but I am confused because the above note is mentioning "Operating System Drives " wherein I want to turn on Bitlocker on Non System Drive.

Can we turn bitlocker "on" on Non System Drives without turning it "on" on System Drives and Can we turn it "on" on
a Single Folder instead of Drive.

Please advise step by step.

 

Bitlocker stops OneDrive starting

I believe this requires the OS drive to be protected by Bitlocker which mine isn't, if I recall it's because I don't have a TPM

 

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?