C:\> manage-bde -status C:
BitLocker Drive Encryption: Configuration Tool version 10.0.19041
Copyright (C) 2013 Microsoft Corporation. All rights reserved.
Volume C: [Windows]
[OS Volume]
Size: 222.74 GB
BitLocker Version: None
Conversion Status: Fully Decrypted
Percentage Encrypted: 0.0%
Encryption Method: None
Protection Status: Protection Off
Lock Status: Unlocked
Identification Field: None
Key Protectors: None Found