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This error is shown when a VSS provider blocks (or vetoes) the creation of a snapshot and can be due to:

  • Installing software that installs its own VSS provider,
  • An existing VSS provider component has become corrupted.


Solution - Reregister the VSS components
  1. From the main menu, select Other Tasks > Fix VSS Problems

  2. The Fix VSS Problems dialog is shown, click Run to re-register the VSS components.

Increase Shadow Storage

Additionally, increasing the size of shadow storage on the drive that's being imaged may be required.

  1. Open a command prompt with elevated privileges

  2. Type the following command:

    vssadmin Resize ShadowStorage /For=c: /On=c: /Maxsize=10%

    Replace 'C:' with the correct drive. You can use more or less than 10%, but 10% is a good default.