Hyper-V Virtual Machines Fail to Start and Initialize after Windows 10 Upgrade from Windows 8.1

Anonymous
2015-08-01T20:24:10+00:00

My Windows 8.1 Hyper-V virtual machines worked fine. I just upgraded to Windows 10 (with the CPU hypervisor turned off) and when I attempt to start the machines (after enabling the hypervisor) I get the errors: "'(machine name)' failed to start." and "'(machine name)' could not initialize." The same thing happens when I attempt to create a new virtual machine and then start it. Any thoughts on this would be very appreciated.

UPDATE:  SEE MY UPDATE BELOW FOR MORE SOLUTION INFORMATION.

Windows Server High availability Virtualization and Hyper-V

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  1. Anonymous
    2016-09-08T19:49:45+00:00

    THANK YOU!!!

    I've been working on this for 2 hours and it FIXED my issue.

    ALL I NEEDED TO DO:

    1. STOP Hyper-V Service
    2. Open powershell / command prompt with Admin rights
    3. net localgroup administrators SERVICE /delete
    4. START Hyper-V Service
    1 person found this answer helpful.
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  2. Anonymous
    2016-09-09T22:05:46+00:00

    Glad your issue was solved.

    just out of curiosity, what build of windows 10 are you on?

    I don't use Hyper-V because I need a fully functioning XP mode. If your going to have a win7 or 8 guest, by all means, use Hyper-V. but if you need something older, like XP, use VMLite XPMode. It still works under the latest version of win10 (build 14393.105). I most recently installed a windows 3.1 Edu-tainment game (odell down under)  into XP mode and now, when ever I want to run it, I just go to the win10 start menu and start typing "odell" and the published entry comes right up. and the program opens when I select it as if it were running natively

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