| title | description | ms.topic | ms.assetid | ms.author | author | manager | ms.date |
|---|---|---|---|---|---|---|---|
bdehdcfg target | Reference article for the bdehdcfg target command, which prepares a partition for use as a system drive by BitLocker and Windows recovery. | reference | f761d25d-8349-4ac7-ac46-6bb340a4348f | mosagie | robinharwood | mtillman | 10/16/2017 |
Prepares a partition for use as a system drive by BitLocker and Windows Recovery. By default, this partition is created without a drive letter.
bdehdcfg -target {default|unallocated|<drive_letter> shrink|<drive_letter> merge} | Parameter | Description |
|---|---|
| default | Indicates that the command-line tool will follow the same process as the BitLocker setup wizard. |
| unallocated | Creates the system partition out of the unallocated space available on the disk. |
<drive_letter> shrink | Reduces the drive specified by the amount necessary to create an active system partition. To use this command, the drive specified must have at least 5 percent free space. |
<drive_letter> merge | Uses the drive specified as the active system partition. The operating system drive cannot be a target for merge. |
To designate an existing drive (P) as the system drive:
bdehdcfg -target P: merge 