问题描述
我要将外部驱动器移到新计算机上。
驱动器受 Bitlocker 保护，但我可以解锁并查看内容。
但是，当我尝试配置自动解锁时，我看到：
C:\>manage-bde -autounlock -enable d:
BitLocker Drive Encryption: Configuration Tool version 10.0.17763
copyright (C) 2013 Microsoft Corporation. All rights reserved.
ERROR: An error occurred (code 0x80310010):
The BitLocker Metadata for the encrypted drive is not valid. You can attempt to repair the drive to restore access.
有没有办法重建元数据？
显然元数据足以解锁卷，所以我想知道错误消息是否正确。
解决方法
进一步调查发现错误信息不正确。
问题的原因是磁盘被标记为只读。
使用 diskpart 清除只读标志，然后锁定和解锁卷后，manage-bde -autounlock -enable d: 正常工作。
C:\>diskpart
Microsoft DiskPart version 10.0.17763.1554
Copyright (C) Microsoft Corporation.
On computer: HYPER-V
DISKPART> list volume
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 C NTFS Partition 465 GB Healthy Boot
Volume 1 Recovery NTFS Partition 499 MB Healthy Hidden
Volume 2 FAT32 Partition 100 MB Healthy System
Volume 3 D DATA ReFS Partition 7449 GB Healthy
DISKPART> select volume 3
Volume 3 is the selected volume.
DISKPART> attributes disk
Current Read-only State : Yes
Read-only : Yes
Boot Disk : No
Pagefile Disk : No
Hibernation File Disk : No
Crashdump Disk : No
Clustered Disk : No
DISKPART> attributes disk clear readonly
Disk attributes cleared successfully.
DISKPART> exit
C:\>manage-bde -lock d:
BitLocker Drive Encryption: Configuration Tool version 10.0.17763
Copyright (C) 2013 Microsoft Corporation. All rights reserved.
Volume D: is now locked
C:\>manage-bde -unlock d: -pw
BitLocker Drive Encryption: Configuration Tool version 10.0.17763
Copyright (C) 2013 Microsoft Corporation. All rights reserved.
Enter the password to unlock this volume:
The password successfully unlocked volume D:.
C:\>manage-bde -autounlock -enable d:
BitLocker Drive Encryption: Configuration Tool version 10.0.17763
Copyright (C) 2013 Microsoft Corporation. All rights reserved.
Key Protectors Added:
External Key:
ID: {3CEFC24B-BBBF-4818-A128-9FA0E87E872D}
External Key File Name:
3CEFC24B-BBBF-4818-A128-9FA0E87E872D.BEK
Automatic unlock enabled.