How to resolve Event 14260, Hyper-V-VMMS

We have a brand new Server 2019 Hyper-V host that was added into an existing 2016 Cluster. (Yes we are in process of replacing all these hosts with 2019)

When an admin logs onto the new host, it generates these warnings for each VM.

Log Name:      Microsoft-Windows-Hyper-V-VMMS-Admin
Source:        Microsoft-Windows-Hyper-V-VMMS
Date:          5/15/2020 9:12:00 AM
Event ID:      14260
Task Category: None
Level:         Warning
User:          SYSTEM
User 'DOMAINXXAdminXX' does not have the permission required to perform the operation on 'DMBIDev'. (Virtual machine ID E3A3F77F-XXXX-474A-XXXX-032E9DB9BE54)
Event Xml:


This appears to be the same issue mentioned in the below post from 6 years ago that went unanswered.

Does anyone know how to resolve?

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Theory question on HV performance counters


As you know there are Hyper-V Hypervisor
Logical Processor,
Hyper-V Hypervisor
Virual Processor and
Hyper-V Hypervisor
Root Virtual Processor performance counter sets in Performance Monitor. Each of them has the %Guest Time, %Hypervisor Time and %Total Run Time counters:

I can’t understand the following: for the physical proccesor(s) the counter %Guest Run Time defines how much of the physical core’s processing power is used for running virtual machines, but what
does this counter mean in the context of the VM itself? If there’s no nested Hyper-V inside a VM then theoretically should NOT be any "guests" inside a VM…?

The same question applies to the Hypervisor Run Time counters.

Thank you in advance,

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2nd vm is not creating because of memory issue

I am trying to install minishift vm while Docker desktop vm is running. Docker desktop vm memory is 1GB and miinishift vm memory is 3GB. Minishift vm is failing to start if docker vm is running. If I shutdown docker vm, then minishift vm is starting without
fail. I want to run both minishift and docker vms at same time. Please help me to fix this.

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[Hyper-V on windows 10] How to access usb drive from ubuntu 20.04?


I have windows 10 with last updates and installed few VM like "Windows 10 dev" and "ubuntu 20.04". My question is how to access to usb device from Ubuntu VM? 

When I run "windows 10 dev" VM it allow me use enhanced session mode and there I can share those usb devices, but for ubuntu and other VM based on linux I dont see that option. So how to do if "enhanced session" mode doesnt work for those


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Live Migration Fails

Whenever I try to move the VM the following error message appears: Live migration of ‘Virtual Machine GameCache’ failed. But with all other VMs the migration works. Does anyone know what the error could be?

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HyperV guest Nic issue


I have copied from backup the disk images of a server 2016 which was running on a HyperV (2016) server and re created the server on a new server ( same spec, make and model), I have used server 2016 again and created with the same named virtual switch 

when i boot up the VM the server loads ok and lets me log in BUT the network card has no IP4 or IP6 protocols.If i try add them it says that the feature cannot be added as the file cannot be created as the file already exists.

I have tried deleting the network card and rebooting

I have tried showing disabled adaptors in device manager and removed them 

any ideas what to do next.

I restored another server (2012r2 the same way on the same new server and this works perfectly so I dont think its the Virtual switch thats at fault, 

any advice would be great


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Is there any proper way to know If a VM is on Hyperv or Azure using Bash ?

Is there any proper way to know If a VM is on Hyperv or Azure using Bash ?

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Hyperv Nic Issue

Hi Hope someone can assist 

I have copied a VM servers data drives  from  a backup of a DELL hyperv server to a different Hyperv server of the same spec, 

I have re created the server and attached the drives, when I boot up the server ( server 2016) it loads ok and lets me log in BUT

the Virtual nic adapter has a red cross, when I go look at it, it is missing ip4 and ip6 protocols, if I try add them I get the error "could not add the requested feature, the error is: cannot create file when file already exists"

I have removed all old network devices from device manager and also tried recreating the network on the HyperV Host 

I have a second also copied server running on this backup server ( server2012r2) attached to the same virtual network and this is ok. 

any ideas what would cause this

thanks in advance


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Cannot convert physical disk to VHDX

I create a new virtual disk and choose to copy the contents of the physical disk and get an error.

Event ID 27266 Hypev-V-VMMS

The description for Event ID 27266 from source Microsoft-Windows-Hyper-V-VMMS cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event: 


The locale specific resource for the desired message is not present
Event ID 15278 Hypev-V-VMMS

Failed to convert the virtual disk.

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UUID Solution for Hyper-V

Hello Fellow Hyper-V Engineers,

I am trying to find a solution in my org at my company to find a method of tracking meta-data that could be used as a UUID for an automation system where VMs would be decommed and deleted via a customer facing portal.   My problem here is that
Hyper-V does not have legit UUIDs for VMs as they can be changed when migrated across clusters, be empty (due to error ) or be copied from a clone.

I am trying to find an easy and practical solution like perhaps parsing the licensing meta-data of a VM when trying to identify the correct VM to delete .

Thank you for your time.

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