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KB-3237: Failed to decrypt data. You do not have sufficient permissions to decrypt the user credential

Centrify DirectControl ,  

12 April,16 at 11:47 AM

Applies to: All versions of Centrify Deployment Manager
 
Question:
 
When the password of the local Windows account used to launch deployment manager is changed, the following error occurs when trying to update properties of computers:
 
"Failed to decrypt data. You do not have sufficient permissions to decrypt the user credential"
 
This can be fixed this by deleting and recreating the DM database:
 
C:\Users\<USER>\AppData\Roaming\Centrify\DeploymentManager\datastore.sdf
 
But this is a very cumbersome workaround, is there another option to handle this?
 
Answer:
 
In the above case, there is a difference between changing password using:
a) Ctrl+Alt+Delete
b) Computer management > User GUI
 
When a) is used, it asks for the old password .
When b) is used, it does not ask for the old password.
 
There is a security risk involved in changing password using b), so Windows will pop up a strong warning message indicating that encrypted passwords stored in system will not work. 
Centrify uses DPAPI (http://support.microsoft.com/kb/309408), and so it also affects Deployment Manager.
 
If password is changed using Ctrl+Alt+Delete, this issue should not happen.

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