Turning hyper-v on and off

  • Article

I use hyper-v on my laptop. When I know I don't need VMs for the day, I can squeeze a bit more performance out of the machine by turning hyper-v off with:

bcdedit /set hypervisorlaunchtype off

and a reboot. To turn it back on:

bcdedit /set hypervisorlaunchtype on (or auto start)

and reboot.

Comments

  • Anonymous
    January 01, 2003
    hello

  • Anonymous
    January 01, 2003
    Run Cmdr as administrator

  • Anonymous
    April 18, 2011
    I receive the message:  an error occurred while attempting to reference the specified entry.  I did this from the command prompt installation disk.  Thanks

  • Anonymous
    April 10, 2014
    Would this work on Windows 8 or Windows 8.1? And do I need to use cmd?

  • Anonymous
    May 22, 2014
    Great! Thank you, that saved my life hehe =]

  • Anonymous
    June 18, 2014
    and where does the bcdedt/set hypervisorlaunchtype get switched on?

  • Anonymous
    September 10, 2014
    thanks just use bcdedit /set hypervisorlaunchtype auto start for it to turn back on

  • Anonymous
    June 03, 2015
    here is different way to disable Hyper-V: http://druss.co/2015/06/fix-vt-x-is-not-available-verr_vmx_no_vmx-in-virtualbox/

  • Anonymous
    July 23, 2015
    thanks. That would be cool. to keep both!.

    I assume that normally this would work... however...


    The boot configuration data store could not be opened.
    The system cannot find the file specified.

    Note that this is a dual-boot grub2 based linux/windows setup.


    Roeland

  • Anonymous
    August 21, 2015
    poop

  • Anonymous
    December 18, 2015
    Command/Parameter to turn it back would be
    bcdedit /set hypervisorlaunchtype Auto

    Ref: https://msdn.microsoft.com/en-us/library/windows/hardware/ff542202(v=vs.85).aspx