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Event ID 19 — VSS Writer Operations

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Applies To: Windows Server 2008 R2

Volume Shadow Copy Service (VSS) writers are applications or services that store persistent information in files on disk and that provide the names and locations of these files to requesters by using the shadow copy interface.

Event Details

Product: Windows Operating System
ID: 19
Source: VSS
Version: 6.1
Symbolic Name: VSS_ERROR_STARTING_EVENTS_SAFEBOOT
Message: Volume Shadow Copy Service error: The EventSystem service is disabled or is attempting to start during Safe Mode. The Volume Shadow Copy service cannot start while in safe mode. If not in safe mode, make sure that EventSystem service is enabled. CLSID:%1 Name:%2 [%3] %4

Resolve

Ensure that the COM+ Event System service is enabled and started

The Volume Shadow Copy Service (VSS) relies on COM+ to deliver events to VSS components and applications. If the COM+ Event System service is unavailable, VSS cannot function properly.

You must perform the following procedure in Normal mode. Check whether the system is running in Safe mode. When your computer is in Safe mode, you will see the words Safe Mode in the corners of the display. If it is in Safe mode, restart it in Normal mode. In Normal mode, check whether the COM+ Event System is running.

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

Check that the COM+ Event System service is enabled and started

To check that the COM+ Event System service is started:

  1. Click Start, click Administrative Tools, and then click Services.
  2. In the results pane, double-click COM+ Event System.
  3. In Service status, make sure that the status is Started. If the status is not Started, click Start.
  4. Ensure that Startup type is set to Automatic.
  5. Click OK.

Verify

To verify that the Volume Shadow Copy Service (VSS) writers are operating correctly, perform the following procedure, and then retry the previous VSS operation.

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To verify that the Volume Shadow Copy Service (VSS) writers are operating correctly:

  1. Open an elevated Command Prompt window. Click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
  2. Type vssadmin list writers, and then press Enter.
  3. Ensure that all writers are in the Stable state and are operating without errors.

For more information about the vssadmin command, see https://go.microsoft.com/fwlink/?LinkId=103401.

VSS Writer Operations

File Services