Error: VSS: Volume not supported by provider. (C:\ClusterStorage\Volume\)(\\?\volume{GUID}

Is reported during backup of VM in Hyper-V Cluster


There are multiple VSS Providers in the Hyper-V cluster. Example ONTAP VSS Provider


Run: vssadmin list providers

In each node of the Hyper-V cluster to find out all providers in the systems.

Then run the command to disable the third party providers.

To disable/enable ONTAP provider from a command line window:

Disable: navssprv.exe -r service /u

Enable: navssprv.exe -r service -a user -p password