It can be found that, when using Nutanix Move to migrate older Windows VMs, an error is exhibited regarding a failure to install the Nutanix App Mobility device drivers and to check if the operating system is SHA2 compatible. This can be due to the fact that certain Windows operating system versions (such as Windows 7 and Windows Server 2008R2) do not natively support SHA2-signed drivers, which is the type of drivers that Nutanix Move uses.
This condition can be overcome by:
Ensuring that the operating system has all of the latest updates (which are available for it) installed
Confirming specifically that Microsoft KB 3033929 is installed.
More information regarding this can be found within the VirtIO 1.1.6 installation on Windows 7, Windows Server 2008 R2 knowledge base article.