Decrypting a Disk Using the Windows Policy Agent GUI

The following procedure explains how to decrypt a disk and remove it from Cryptographic Security Platform Vault. If you want to remove the disk but you don't care about the contents of the disk, see Removing a Disk from the Cryptographic Security Platform Vault for VM Encryption.

The following procedure applies to Windows disks only.

Before You Begin 

You cannot decrypt a disk if it has an Access Control Policy associated with it. Make sure that no such policy association exists before you decrypt the disk. For details, see Viewing the Access Control Status for a Disk.

Tip: Depending on the size of the encrypted disk, the decryption process can take a long time to run. If the decryption process is interrupted on Windows, it will be resumed automatically when the disk comes back online.

Procedure 

1. Log into the Windows system using an account with Administrator privileges.
2. Select Start > All Programs > Entrust > Entrust DataControl or start Windows PowerShell and enter the hclGUI command.
3. Right-click on the disk that you want to decrypt and select Decrypt.
4. Click Yes on the confirmation screen.

You can track the decryption status on the Policy Agent GUI. When the decryption has finished, click the Refresh button at the top to refresh the window.