Hyper V -VHDX to AVHDX merging
social.technet.microsoft.com › Forums › en-USNov 28, 2017 · 1. For the .avhdx files left by DPM, we can merge them manually; 2. It's recommended to merge the checkpoint files before starting the VM, while it's also OK to merge the checkpoint files when the VM is running. Here is an article about DPM fails with a recovery checkpoint unable to delete: https://support.microsoft.com/en-us/help/3059372/you-can-t-delete-a-recovery-checkpoint-for-a-virtual-machine-in-data-p.