Windows 8 and 8.1 Forums

Hyper-V

  1. #1


    Phoenix AZ
    Posts : 16
    XP Vista, Windows 7 & 8

    Hyper-V


    I can't run this computer in Hyper-V because the Hyper-V platform is grayed out? This is a snip from the computer and it says I can run in VT-x so why is that?
    Attached Thumbnails Attached Thumbnails VT-x.PNG   Hyper-V.PNG  
    Last edited by lostsoul62; 09 Mar 2012 at 14:30.

      My System SpecsSystem Spec

  2. #2


    Europe
    Posts : 41
    Win 7/Win 8/Android x86/iOS/OS X


    Quote Originally Posted by lostsoul62 View Post
    I can't run this computer in Hyper-V because the Hyper-V platform is grayed out? This is a snip from the computer and it says I can run in VT-x so why is that?
    The reason is simple: Hyper-V 3.0 requires SLAT - a feature, that only the newest processors supports (AMD from K10 onward, Intel iCore i5/i7). I've addressed it a few months ago in [1] (unfortunately in German). It's a penality user has to pay due of a design decision Microsoft made in the past.

    Use Virtualbox, they implemented their virtualization engine in a different way, so VT-x is sufficient.

    1: Windows 8: Hyper-V braucht SLAT fähige CPUs « Borns IT- und Windows-Blog
    Last edited by Brink; 05 Apr 2012 at 12:14. Reason: updated link with a English translation of it
      My System SpecsSystem Spec

  3. #3


    Posts : 1,308
    Windows 8 enterprise x64


    Quote Originally Posted by gborn View Post
    Quote Originally Posted by lostsoul62 View Post
    I can't run this computer in Hyper-V because the Hyper-V platform is grayed out? This is a snip from the computer and it says I can run in VT-x so why is that?
    The reason is simple: Hyper-V 3.0 requires SLAT - a feature, that only the newest processors supports (AMD from K10 onward, Intel iCore i5/i7). I've addressed it a few months ago in [1] (unfortunately in German). It's a penality user has to pay due of a design decision Microsoft made in the past.

    this is not the problem , if you look at the 2 CPUs the op list in his spec, they support Hyper-V, the problem is Lostsoul62 forget to enable SVM ( for AMD) or VT ( for Intel ) in the BIOS, just go in the CPU section of the BIOS it's there.

    Lostsoul62, If you have problem to find it in the BIOS, give me the model of motherboard and I will help you
      My System SpecsSystem Spec

  4. #4


    Europe
    Posts : 41
    Win 7/Win 8/Android x86/iOS/OS X


    Quote Originally Posted by area 66 View Post
    this is not the problem , if you look at the 2 CPUs the op list in his spec, they support Hyper-V, the problem is Lostsoul62 forget to enable SVM ( for AMD) or VT ( for Intel ) in the BIOS, just go in the CPU section of the BIOS it's there.

    Lostsoul62, If you have problem to find it in the BIOS, give me the model of motherboard and I will help you
    Huh, maybe your right - but obviously I'm a bit blind. First I overlooked his processor feature table.

    But after a closer look - where did you read about the 2 CPUs ?

    2nd question: which of the specs listed in the table above is the abbreviation for EPT?

    I won't blame you, just intend to understand the clue, you obtained from the OP post.

    BTW, the link [1] shows a way to test, whether the CPU supports EPT - maybe it helps - and Alex Verboon shows a test for Hyper-V capability in [2].

    HTH

    1: How to Check if Your CPU Supports Second Level Address Translation (SLAT) - How-To Geek
    2: Windows 8 – How to check if your system can run Hyper-V « Anything about IT
      My System SpecsSystem Spec

  5. #5


    Posts : 1,308
    Windows 8 enterprise x64


    Quote Originally Posted by gborn View Post
    - where did you read about the 2 CPUs ?
    I'm not sure I understand, if you means where I see the 2 CPU of the OP , it's in his spec

    CPU AMD 955 & Intel E6550

    now if you ask me where I read about if those CPU work with Hyper-V, well, I don't need to read, I use already Hyper-V on those CPU, and it work fine, as I said the OP just have to enable the thing I mention in the BIOS and Hyper-V will not be grey anymore.
      My System SpecsSystem Spec

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