On some configurations, the VSS snapshot operation may fail to add volumes to the snapshot set

Last published : Oct 01, 2026
On certain configurations, this issue may occur when you perform a VSS snapshot operation. In this case, the snapshot operation fails to obtain the CLSID (class ID) of the VSS software plugin and displays the following error:
Volume Shadow Copy Service error: Error creating the Shadow Copy Provider COM class with CLSID \<Class ID\> Class not registered
Because of this, the snapshot operation fails to add volumes to the snapshot set. (3272033)
Workaround: As a workaround, re-register the VSS software plugin by running the following commands using the CLI, and then retry the operation:
  1. net stop "veritas vss provider"
  2. vxvssprovider.exe /unregserver
  3. vxvssprovider.exe /service
  4. net start "veritas vss provider"
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