Usability limit for Volume Shadow Copy Service (VSS)

This article provides a workaround for usability limit of Volume Shadow Copy Service (VSS).

Original KB number:   2967756


You may receive an error message or notice a failure if you try to perform one of the following operations on Windows client or Windows Server operating systems:

  • You enable the Volume Shadow Copy Service (VSS) on a volume that is larger than 64 terabytes (TB).
  • You create writable snapshots or snapshots that are larger than 64 TB.
  • You enable VSS for a shared folder on a volume that is larger than 64 TB.
  • You run a backup operation on a volume that is larger than 64 TB that has a shadow copy enabled.
  • You run chkdsk.exe on a volume that is larger than 64 TB.

The error message may include:

  • STOP: 0x0000007E

  • Failed to create a shadow copy of volume < Drive_letter >.

  • Error 0x80042306: The shadow copy provider had an error. Check the System and Application event logs for more information.

  • Event ID: 12289. Error: 0x80070057. The parameter is incorrect.


This issue occurs because Microsoft does not support VSS on volumes larger than 64 TB. Also, writable snapshots or snapshots larger than 64 TB are not supported.


To work around this issue, do not perform any of the operations that are described in the "Symptoms" section on a volume that is larger than 64 TB.

More information

For more information about VSS, go to the following Microsoft websites:
Volume Shadow Copy Service

How Volume Shadow Copy Service works

Scalability factors for shadow copies

Best practices for shadow copies of shared folders