Hi,
Thank you for your reply!
1) Type "ClientAccessible" will occur when you create Shadow Copies on a Windows client by means of OS; while type "ApplicationRollback" will appear when you create Shadow Copies through some third-party tools like NetBackup or Sonicwall capture client (Advanced) Rollback, etc.
The difference: the created Shadows Copies through Windows OS are visible, browseable and restorable in Windows Explorer (by "Restore previous versions" option etc); while the ones created by third party tools are not visible/restorable on OS level. Only on the third-party like NetBackup, level.
2) Based on 1), you can see that you may not be able to delete shadow copies with type "ApplicationRollback" by normal vssadmin command, you can run the command in this article to delete "ApplicationRollback" copies:
https://www.mass.dk/netbackup-quick-hints/deleting-an-application-rollback-shadow-image/
(Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.)
In addition, this article is for NetBackup and I am not sure whether the command is suitable for your third-party tool as well. So, I suggest you to identify the third-party tool and search for the commands specific fot that tool to delete related shadow copies.
Thank you for your support and understanding! Wish you have a wonderful day! : ) And don't forget to help me "Accept Answer" if my reply is helpful.
BR,
Joan
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