failed to initalize VM

Sunghyun Park 61 Reputation points


There is problem to start VM on Windows Server 2012 R2 Hyper-V.

Here is error message.

I've checked eventlog.

It happened application error when try to start VM.

I am suspicious of the July update.

Does any one can advise to me?
Somebody help me.


A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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Accepted answer
  1. Eleven Yu (Shanghai Wicresoft Co,.Ltd.) 10,671 Reputation points Microsoft Vendor


    Sometimes, the VM will fail to initialize if there is no enough memory can be assigned for the VM boot.
    Please ensure that there is enough memory could be assigned for the VM.

    If you suspect the issue is related to the Windows updates, please try to remove the updates or install latest Windows update to see if the issue could be resolved or not.

    Also, I did more research and found below two treads which mentioned the same problem as yours. Please kindly check if the solutions are helpful for you.

    Hyper-V machines not starting after Windows Updates Server 2012R2
    An error occurred while attempting to start the selected virtual machine(s)


    If the Answer is helpful, please click "Accept Answer" and upvote it. Thanks.

    1 person found this answer helpful.

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