Monthly Archives: December 2018

Hyper-v VM can not open in another Physical server using HYPER-V

Dear ALL,

I have a VM installed OS win 2012 r2 running well I have copied the entire VM files with config file to another Dell server and create a VM when I start it does not it say please insert the CD ….. it gen2 vm. what couls be the reason that it ask for boot..
as that VM has every thing running …

Happy new year


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Unable to activate Windows 2012 R2 STD edition VM within Windows 2012 R2 STD edition Hyper V server

I tried to activate the Windows 2012 R2 STD edition VM (my Hyper V server is also Windows 2012 R2 STD edition) using AVMA keys using the following commands (in elevated cmd)

cd C:windowssystem32
cscript slmgr.vbs /ato

Then I got 0xC004FD03 error and activation failed.

After that I tried to activate using the OEM key of the Hyper V server.

slmgr /upk
slmgr /ipk
slmgr /ato

Then I got 0xc004c008 error and activation failed.

Please advise on this and thanks.

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Migration from 2012 to 2016

Dear All,

I have a 2 nodes Hyperv cluster 2012 and i want to migrate to 2016. All articles i found is migrating 2012 R2 to 2016, what is the supported way to do this migration?



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Can’t connect to Hyper-V localhost

Hi, please help me! I cant connect to my localhost Hyper-V vmms. I tried to reinstall Hyper-V multiple times, and this command below didnt help me.

MOFCOMP %SYSTEMROOT%System32WindowsVirtualization.V2.mof

My screenshots in Portuguese: "Em execução" means Running.

When i try to stop vmms, i got this error:

Same error in english (i founded on internet):

PS: LsaIso.exe is running, i dont know how to disable it, i tried many tutorials

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How does the checkpoint merge process work?


Does anyone have any documentation or some reference blog that explains how it works technically?

I mean, it’s not how to do it, but rather, how that process works internally in hyperv.

To exclude a large checkpoint, do you need disk space for staging area or free memory?

Is it safer to have the VM turned off or on?

Thank you.

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Checkpoint removal


I have a server with large volumes (500gb) with checkpoint of 150gb differential.

What is the recommendation to remove these checkpoints?

Do I have server on or off?

Thank you.

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SPLA Windows Server 2012 R2 std. only with Hyper-V role


I would like to clarify the followings:

Licensing type is SPLA.

If I install a Windows Server 2012 R2 std. only with HYPER-V role to a physical server, need to license it or not?

(Of course, the VMs what this server is running must be licensed.)

Thanks in advance!

Best Regards,

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Ubuntu 16.04LTS fails to boot on nested Hyper-V for Gen 2 VMs but didn’t used to

For the last year or so we have had a Windows 2016 (1607 OS build 14393.2670) VM host, called
HOST-A, running on a physical box. On that VM host we have a VM called
VM-A that has Windows 2016 installed (same version & OS build as the HOST-A machine). On VM-A we have installed the Hyper-V role and we have been using it to build VMs in an isolated VM host (VM-A only builds VMs, it doesn’t host any VMs
if it is not building). At the moment we mostly build Ubuntu 16.04 LTS machines. This has worked fine for over a year, until end of September 2018 / start of October 2018.

Since that point in time we cannot run Ubuntu 16.04 in a VM on VM-A anymore. We can configure the VM and start it but then it hangs even before booting the OS.

The standard configuration we used is:

  • Ubuntu 16.04
  • Gen 2 VM
  • When installing from ISO turn off Secure boot. During the install process configure the disk so that it has the right files to handle secure boot so that we can use the disk as a template for other VMs that can use secure boot

What works and doesn’t work now as a VM on the VM-A machine

  • Windows server works fine
  • Ubuntu 18.04 with a Gen 2 VM works fine, although it doesn’t report it’s IP address
  • Ubuntu 16.04 with a Gen 1 VM works fine
  • Ubuntu 16.04 with a Gen 2 VM does NOT work

What works as a VM on the HOST-A machine

  • Windows server works fine
  • Ubuntu 16.04 with a Gen 2 VM works fine
  • Ubuntu 18.04 with a Gen 2 VM works fine

This leads me to conclude that something has changed in Nested Hyper-V for Gen 2 machines and either Ubuntu needs an update or …?

So does anybody know if there have been any changes to Hyper-V / Windows that could have caused this and what can be done about it.



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Unfortunately I don’t remember if my original Volume was REFS or NTFS before creating the Hyper-V Cluster CSVFS Volume?

Where can I verify this info?

Thank you.

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New KB articles published for the week ending 22nd December, 2018

VMware Horizon Collecting Horizon Agent 7.6 logs remotely does not complete successfully Date Published: 18-12-2018 Print jobs are cancelled on Windows 7 Client machines Date Published: 18-12-2018 VMware NSX-T PSC 6.7 High Availability with NSX-T Load Balancer Date Published: 19-12-2018 VMware SDDC Manager Active Directory users are unable to authenticate to vCenter Server or VMware

The post New KB articles published for the week ending 22nd December, 2018 appeared first on VMware Support Insider.

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