Event ID 517, No Antivirus, If old WindowsImageBackup folder delete or rename then schedule backup working properly otherwise given below error.
The backup operation that started at '2019-10-17T07:08:00.337786100Z' has failed with following error code '0x80070020' (The process cannot access the file because it is being used by another process.). Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.
Md. Ramin Hossain