If your network consists of McAfee Endpoint Security and Hyper V hosts you probably may see below error while managing the VMs. This would be the case if you have not configured exclusions in McAfee for your Hyper V environment.
An error occurred trying to find the virtual machine …..on the computer…..
The computer ‘localhost’ failed to perform the requested operation because it is out of memory or disk space.
Microsoft has a KB addressing this issue.
Also McAfee has a comprehensive document.