Avamar: VMware FLR restore fails immediately with error code 10007 - avvmwfile Error <0000>: VirtualMachine Interface is NULL

Summary: VMware FLR restore fails immediately with error code 10007. The below error string is seen in the logs. avvmwfile Error <0000>: VirtualMachine Interface is NULL avvmwfile Error <0000>: assist_restore error. ret: 157 ...

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Symptoms

VMware FLR restore fails immediately with error code 10007. The below error string is seen in the logs:

avvmwfile Error <0000>: VirtualMachine Interface is NULL
avvmwfile Error <0000>: assist_restore error. ret: 157

 

Cause

The VMware Tools service was unavailable or unresponsive on the Guest OS.

 

Resolution

Verify that the target virtual machine is powered on, VMware Tools is installed, and running the current or most up-to-date version. Below is how this should appear in the vSphere Client.
vSphere Client Summary tab

If VMware tools are unavailable or unresponsive, restart the VMTools service from within the virtual machine.

This can be through the Windows 'Services' screen or by running the following from the Windows command line:

net stop vmtools
net start vmtools

 

Affected Products

Avamar

Products

Avamar, Avamar Client, Avamar Client for VMware
Article Properties
Article Number: 000058892
Article Type: Solution
Last Modified: 18 Nov 2025
Version:  4
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