[Fix] VT-x is not available. (VERR_VMX_NO_VMX)

By | March 5, 2015

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I got this error after installing Visual Studio 2015 CTP 6 with Windows Phone 8.1 emulator. Sometimes  you can get this error if you turned off VTx or AMDv in bios. So, first things to do is: make sure that Virtualization is enabled in bios.

Next – turn off Hyper-V. After installing Visual Studio with emulator it automatically turn Hyper-V on. And, apparently, Virtual Box cannot work together with Hyper-V.

  1. Run cmd.exe as administrator
  2. Execute command

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    dism /online /disable-feature /featurename:Microsoft-Hyper-V
  3. Restart computer
    shutdown -r

One thought on “[Fix] VT-x is not available. (VERR_VMX_NO_VMX)

  1. Leigh M

    Thanks for this, you really saved me pulling my hair out trying to figure it out!


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