This article applies to backups of Hyper-V VMs performed by Agent for Hyper-V (agent-less)
About
Prerequisites
Prior to performing the backup, make sure that the below prerequisites are met:
1. Hyper-V Integration Services must be up-to-date and running inside the virtual machine(s).
2. In order to avoid VM going into "saved" state during backup, make sure that the Integration services -> Backup (Volume checkpoint) option is enabled in VM settings in Hyper-V Manager.