IsAutoUnlockKeyStored method of the Win32_EncryptableVolume class
The IsAutoUnlockKeyStored method of the Win32_EncryptableVolume class indicates whether any external keys or related information that may be used to automatically unlock data volumes exist in the currently running operating system volume.
Syntax
uint32 IsAutoUnlockKeyStored(
[out] boolean IsAutoUnlockKeyStored
);
Parameters
-
IsAutoUnlockKeyStored [out]
-
Type: boolean
Is true if any information that can be used to automatically unlock data volumes is stored in the registry of the currently running operating system volume.
Return value
Type: uint32
This method returns one of the following codes or another error code if it fails.
| Return code/value | Description |
|---|---|
|
The method was successful. |
|
BitLocker is not enabled on the volume. Add a key protector to enable BitLocker. |
|
The method can only be run for the currently running operating system volume. |
Remarks
Use ClearAllAutoUnlockKeys to remove all unlocking information from the currently running operating system volume.
Information used to unlock a volume is stored when EnableAutoUnlock is run for a data volume while the currently running operating system volume is running.
IsAutoUnlockKeyStored differs from IsAutoUnlockEnabled in that even if automatic unlocking is disabled for all data volumes currently connected to the computer, there may still be unlocking information associated with disconnected data volumes or data volumes that no longer exist.
Managed Object Format (MOF) files contain the definitions for Windows Management Instrumentation (WMI) classes. MOF files are not installed as part of the Windows SDK. They are installed on the server when you add the associated role by using the Server Manager. For more information about MOF files, see Managed Object Format (MOF).
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista Enterprise, Windows Vista Ultimate [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
| Namespace |
Root\CIMV2\Security\MicrosoftVolumeEncryption |
| MOF |
|
See also