I recently migrated a Windows 2008 R2 VM that was running in Hyper-V on a Windows 2008 R2 host to Azure. Upon starting it up in the Azure virtual machine, Windows is showing three Unknown Devices in device manager. The first has a value of ACPI\Hyper_V_Gen_Counter_V1 in the Hardware ID. The other two simply show VMBUS\(unique ID) in the Hardware ID value.
I'm wondering if these are the remnants of the Hyper-V Integration Services that were installed when the VM was running on Hyper-V locally? And, if so, should they still be installed when the VM is running in Azure? Are there other integration components that should be installed for VM's running in Azure?
Stephen Stark