KB ID : 104061
Products :
Published : Jan. 3, 2019
Created : Jan. 3, 2019
Last Modified : Jan. 3, 2019


This alert usually throws when backups are failing due to an agent's VSS writers being in a failed or invalid state for proceeding backup. Microsoft error code: 0x80042301


An alternative solution other than restarting the server is to restart the associated services for each of the VSS writers showing up in a failed state by following the steps below:

  • Check the writers status by executing “vssadmin list writers” command in command prompt
  • If the writers are not in a stable state, Restart the corresponding writers.
  • Confirm the status has changed to Stable by executing “vssadmin list writers” command in command prompt.
  • Run the backup again.
  • If the above solution did not resolve the issue then a machine restart would fix the issue.
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