How to re-lock a BitLocker encrypted drive

Published on Sunday, April 29, 2012

There's no re-lock alternative directly in the context menu for re-locking an unlocked BitLocker volume. So after a bit of searching I came up with a solution based upon two-three different posts.

  1. Unpack the content of this zip which contains two files (One with the registry command to add the option to lock the BitLocker volume from the context menu and another that runs the BitLocker lock command manage-bde -lock -forcedismount ).

  2. Copy the dismount-bitlocker.vbs to C:\windows\system32 (If you have installed windows on a different drive you need to change the command.reg to mirror this).

  3. Run the command.reg file so that the new registry keys are installed.

  4. Right-click on a mounted BitLocker volume and ta-da!

Re-lock BitLocker

Command.reg

Windows Registry Editor Version 5.00 
[HKEY_CLASSES_ROOT\Drive\shell\lock-dbe-rudi]
"AppliesTo"="(System.Volume.BitLockerProtection:=1 OR System.Volume.BitLockerProtection:=3 OR System.Volume.BitLockerProtection:=5) "
@="Lock BitLocker Volume"
"HasLUAShield"=""
"MultiSelectModel"="Single"
[HKEY_CLASSES_ROOT\Drive\shell\lock-dbe-rudi\command]
@="cmd /c \"c:\\windows\\system32\\dismount-bitlocker.vbs %1\""

dismount-bitlocker.vbs (see references for original source)

Args = ""
Last = Wscript.Arguments.Count - 1
For i = 0 To Last
 Args = Args & " " & Wscript.Arguments.Item(i)
Next
Args = Replace(Args,":\",":")
CreateObject("Shell.Application").ShellExecute "manage-bde.exe", "-lock -forcedismount " & Args, "", "runas", 0

Download

Download code

Sources

Windows 8.1 re-lock Bitlocker unlocked drive

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