Weird Outlook profiles call EnterpriseVault_0000_0000 in the client computer

Hi all,

While troubleshoot an outlook profile problem, we came a cross a weird outlook profile, please see picture:

All user have 3 extra profile called EnterpriseVault_0000_0000 (the numbers varies in all user), they don't appear in outlook nor in the file system only in the registry, and they appear in the "profiles" and "Deleted profiles" sections.

If I delete them, they appear again when Outlook opens.

 

I like to know what is this? 

The user environment is as follow:

• Windows 7
• Outlook 2010
• Outlook addin v10.0.4.1354
• Vault Cache
• No Virtual Vault.

The Server environment is as follow:

• Windows server 2008
• Enterprise Vault 10.0.4 CHF3
• Exchange 2010 SP3 RU13