setantae

Q: Why is VT-x disabled in Windows 10?

If I cold boot my MacBook Pro (late 2015) into Windows 10, VT-x shows as disabled.  It seems that I have to boot to Mac OS X first, then reboot into Windows 10, which isn't very good.

MacBook Pro with Retina display, Windows 10

Posted on Dec 1, 2015 6:40 AM

Close

Q: Why is VT-x disabled in Windows 10?

  • All replies
  • Helpful answers

  • by pedro d,Helpful

    pedro d pedro d Dec 2, 2015 3:03 PM in response to setantae
    Community Specialists
    Dec 2, 2015 3:03 PM in response to setantae

    Hi setantae,

    The resources below explain the settings and process for using VT-x technology on your Mac.

    Intel-based Macs: Using VT-x virtualization technology
    https://support.apple.com/en-us/HT203296

     

    You may notice that VT-x support is disabled when using some third-party applications on your Mac that utilize it (such as VMWare Fusion or Parallels Desktop).
    You should also install any software updates available for any software not made by Apple. If the issue persists, contact the software manufacturer for assistance.

    Intel VT-x technology is enabled on Intel-based Macs.  Make sure your Intel-based Mac has all available EFI updates installed; also update any third-party virtualization software.

     

    This discussion thread provides additional information about working with Boot Camp:

    If I reboot to Windows directly from Windows (bootcamp options), I cannot launch a vm in Hyper-V

    You should always use System Preferences -> Startup Disk. It enables the CSM-BIOS layer. When you use the Option Key, Windows will come up, but underlying CSM-BIOS layer is not invoked. The Hyper-V depends on BIOS settings, it will only work when using the Startup Disk option.

     

    Happy Holidays!

  • by setantae,

    setantae setantae Dec 2, 2015 3:04 PM in response to pedro d
    Level 1 (0 points)
    Dec 2, 2015 3:04 PM in response to pedro d

    Hmm, thanks.  Seems somewhat anti-competitive to me somehow.