Windows 10: Bitlocker is automatically enabled on NTFS partition - how to disable?

I'm just installing my notebook from scratch. I set up a dual boot with Fedora 27 and Windows 10 Pro.
Both OSes are installed on the same SSD (1 TB). The system is EFI with Secure Boot activated.
First of all I installed Win10 on a 200GB partition. Afterwards Fedora installer was used to install Fedora (250GB space) alongside Win10 together with Grub boot loader. Everything fine so far.
My idea is to setup the remaining space of 500GB as a NTFS partition which will then be shared among the both OSes.
I formatted it from the Linux OS with NTFS and mounted it. Everything worked fine.

Once I boot into Windows 10, it automatically changes the partition type to "NTFS (bitlocker encrypted)" - without any user intervention or input. At the next boot in Linux it refuses mounting because it doesn't know of Bitlocker...

I already tried switching off Bitlocker via Group Policy editor but that behaviour remains the same.

Any hints how to get rid of this?

Cheers


:)

 

How to use Bitlocker to encrypt (and automatically decrypt) a single but partitioned hard-drive (C and D partitions)?

Hey Solar Eclipse,

I was brave enough today to enable Bitlocker on both my C: and D: partitions of my hard-drive.

Everything went well, following your instructions.

I enabled Bitlocker first on the C: partition (where Windows 10 is installed), and then on the D: partition.

While enabling Bitlocker on the C: partition, the partition unlocked (and continues to unlock) automatically - a Bitlocker password was not requested.

Regards the D: partition, it also unlocks automatically - the wizard for enabling Bitlocker on the D: partition had automatic unlocking as an option, which I chose.

So other than not having to input a Bitlocker password while enabling Bitlocker on the C: partition, your instructions are exact. So I'm marking your post as an answer.

Many thanks!!

 

\Boot\BCD Error 0xc000000f Can't boot Windows 10

How does that D: partition appear if you run Disk Management or diskpart from within the new Windows install? Does it show up as an NTFS partition?

Did you have any encryption in use, such as Bitlocker?

 

Disabling encryption will not decrypt files automatically.


Code: fsutil behavior set disableencryption 1 cipher /d /s:C:\[/quote]

 

No, the fsutil command didn't help. Still the same behaviour afterwards.

My test:
1. Issued the fsutil command above
2. Rebooted Windows
3. Deleted the 500GB volume via diskmgmt and recreated it (format: NTFS)
4. Still the same result. Diskmgmt is telling me that the volume is NTFS but bitlocker encrypted

Just to make it clear: I don't have the issue that files are being encrypted. Actually, it doesn't matter because I start with an empty volume...

My problem is simply the fact that Windows 10 automatically creates respective converts NTFS volumes into bitlocker encrypted NTFS even when Bitlocker ist switched off. This prevents Linux from being able to mount the volume. What I need, is let's say "Plain NTFS"

 

Disable encryption services.
Code: sc config BDESVC start= disabled sc config EFS start= disabled[/quote]

 

Disabling those both services did the trick! *Biggrin

Thank you very much.