I get this at boot and when restarting the Microsoft Exchange Diagnostics service ever since I updated to CU7.  Anyone know anything about this?

Log Name:      Application
Source:        MSExchangeDiagnostics
Date:          12/19/2014 12:30:09 PM
Event ID:      1039
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Server.contoso.com
Description:
Failed to detect the bitlocker state for EDS log drive 'C:\'.
Exception
System.Management.ManagementException: Invalid namespace
   at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)
   at System.Management.ManagementScope.InitializeGuts(Object o)
   at System.Management.ManagementScope.Initialize()
   at System.Management.ManagementObjectSearcher.Initialize()
   at System.Management.ManagementObjectSearcher.Get()
   at Microsoft.Exchange.Diagnostics.Service.DiagnosticsService.DriveLocked(String diagnosticsRootDrive)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchangeDiagnostics" />
    <EventID Qualifiers="49156">1039</EventID>
    <Level>2</Level>
    <Task>1</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-12-19T19:30:09.000000000Z" />
    <EventRecordID>68590</EventRecordID>
    <Channel>Application</Channel>
    <Computer>server.contoso.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>C:\</Data>
    <Data>
Exception
System.Management.ManagementException: Invalid namespace
   at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)
   at System.Management.ManagementScope.InitializeGuts(Object o)
   at System.Management.ManagementScope.Initialize()
   at System.Management.ManagementObjectSearcher.Initialize()
   at System.Management.ManagementObjectSearcher.Get()
   at Microsoft.Exchange.Diagnostics.Service.DiagnosticsService.DriveLocked(String diagnosticsRootDrive)</Data>
  </EventData>
</Event>

• Edited by MnM Show Saturday, December 20, 2014 3:00 AM

Same issue here CU7, haven't found solution yet.

• Proposed as answer by Krisztián Major Friday, February 27, 2015 10:30 AM
• Unproposed as answer by Krisztián Major Friday, February 27, 2015 10:30 AM

Same here.

One clean install of CU6, two clean installs of CU7.

• Edited by Wouter Ooms Thursday, February 26, 2015 1:39 PM

This seems to be resolved my issue:

http://blogs.technet.com/b/anya/archive/2014/11/25/microsoft-exchange-diagnostics-service-crashing-post-cu6-upgrade.aspx

• Proposed as answer by Krisztián Major Friday, February 27, 2015 10:31 AM

Hey all,

I know this is not a "fix" but it will stop the events from appearing.

In the Microsoft.Exchange.Diagnostics.Service.exe.config file, usually located under: C:\Program Files\Microsoft\Exchange Server\V15\Bin\, change the DriveLockCheckEnabled to false.

<add key="DriveLockCheckEnabled" value="false" />

Restart the Microsoft Exchange Diagnostics service.

Hope this helps :)

Mike

• Proposed as answer by Mike R Carter Wednesday, August 12, 2015 2:09 AM

Hey all,

I know this is not a "fix" but it will stop the events from appearing.

In the Microsoft.Exchange.Diagnostics.Service.exe.config file, usually located under: C:\Program Files\Microsoft\Exchange Server\V15\Bin\, change the DriveLockCheckEnabled to false.

<add key="DriveLockCheckEnabled" value="false" />

Restart the Microsoft Exchange Diagnostics service.

Hope this helps :)

Mike

Reduced the frequency of the events but they still appear. Just to throw another wrench in the works, this did not start when CU7 was installed but started when patches were being installed in April this year. CU7 was installed in January. All 4 servers (2 mailbox, 2 CAS) were upgraded, only one of the mailbox servers is reporting this diagnostic issue