I have a new Dell XPS 15 (7590). I did not give the initial Windows 10 Home setup any wifi information so I could install Windows with a pure local user account–there is no Microsoft account on my computer.
I then installed Fedora 31, as one does, and was surprised to see that the main data partition is encrypted by BitLocker! I can't decrypt it with dislocker as I don't know how it was encrypted to begin with.
When I boot the machine, I reach the Windows 10 login screen without entering any passwords to decrypt the drive (as I have to do when booting into my Fedora 31 partition, which is encrypted by LUKS): the only password I enter is for my local user account.
I'd love to know what my recovery key is, or password!, so I can decrypt the drive from within Fedora to mount it. But Windows 10 Home shouldn't support BitLocker, and Microsoft's documentation seems to imply that you can't use BitLocker without a Microsoft account–that's where the recovery password gets stored.
manage-bde almost implies that the drive isn't encrypted, but the Windows Disk Manager (and gparted) are quite clear that the C: partition is encrypted. Explorer does not show the usual BitLocker icons, nor does it offer the Manage Bitlocker option.
PS C:\Windows\system32> manage-bde -status c: BitLocker Drive Encryption: Configuration Tool version 10.0.18362 Copyright (C) 2013 Microsoft Corporation. All rights reserved. Volume C: [OS] [OS Volume] Size: 765.15 GB BitLocker Version: 2.0 Conversion Status: Used Space Only Encrypted Percentage Encrypted: 100.0% Encryption Method: XTS-AES 128 Protection Status: Protection Off Lock Status: Unlocked Identification Field: Unknown Key Protectors: None Found
Has anyone encountered this before? I'd love to keep the encryption on the drive, it appears that a
manage-bde -off C: will permanently decrypt a drive in Windows 10 Home, but I don't know how the drive got encrypted or where the recovery keys are stored.