Exchange Mailbox Stores (Databases) do not populate

SUMMARY

To fix issue of Exchange Databases not populating in Host Server

After adding a client that hosts the Exchange Server, Exchange Databases do not populate under the Host system.

(*NOTE* - This is one possible cause, if this doesn’t fix your issue try alternative troubleshooting)

Exchange VSS Writers are disabled via the Registry by default.

Manually edit the registry entry for the Exchange VSS Writer to Enable

(*WARNING* This is for advanced users only, Incorrectly Editing the Registry will cause system failure)

Click Start, click Run, type regedit, and then click OK.
Locate and then double-click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem
Double-click the Disable Exchange Writer value.
In the Value data text box, change the value from 1 to 0, and then click OK.
Quit Registry Editor.
Click Start, point to Administrative Tools, and then click Services.
Stop and then restart the Microsoft Exchange Information Store service. Microsoft Windows Server 2003 uses the Volume Shadow Copy service to back up open files. The Volume Shadow Copy service uses a writer component to back up files and settings that are specific to a program, such as Microsoft SQL Server 2000 or Microsoft Exchange Server 2003. The writer component tells the Volume Shadow Copy service which files to back up and then pauses corresponding services while the backup is in progress.