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Windows 8 Pro - Hyper-v platform not visible

    Question

  • I have a problem with my desktop/workstation.

    In the windows features dialouge, hyper-v platform isnt listed (not even grayed out). The machine supports hyper-v as I have run win 2012 server with hyper-v on it but decided to turn it from a server to a workstation.

    This is the info from coreinfo

    Coreinfo v3.05 - Dump information on system CPU and memory topology
    Copyright (C) 2008-2012 Mark Russinovich
    Sysinternals - www.sysinternals.com
    
    Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz
    x86 Family 6 Model 58 Stepping 9, GenuineIntel
    HYPERVISOR      -       Hypervisor is present
    VMX             *       Supports Intel hardware-assisted virtualization
    EPT             *       Supports Intel extended page tables (SLAT)

    Any hints? DEP is enabled.

    /Michel

    Friday, October 19, 2012 2:34 PM

Answers

  • On Fri, 19 Oct 2012 14:34:32 +0000, Michel Andre wrote:

    I have a problem with my desktop/workstation.

    In the windows features dialouge, hyper-v platform isnt listed (not even grayed out). The machine supports hyper-v as I have run win 2012 server with hyper-v on it but decided to turn it from a server to a workstation.

    Are you sure you installed the x64 version of Windows 8?


    Paul Adare
    MVP - Forefront Identity Manager
    http://www.identit.ca
    Some programming languages manage to absorb change but withstand
    progress.

    • Marked as answer by Michel Andre Friday, October 19, 2012 7:25 PM
    Friday, October 19, 2012 3:46 PM

All replies

  • On Fri, 19 Oct 2012 14:34:32 +0000, Michel Andre wrote:

    I have a problem with my desktop/workstation.

    In the windows features dialouge, hyper-v platform isnt listed (not even grayed out). The machine supports hyper-v as I have run win 2012 server with hyper-v on it but decided to turn it from a server to a workstation.

    Are you sure you installed the x64 version of Windows 8?


    Paul Adare
    MVP - Forefront Identity Manager
    http://www.identit.ca
    Some programming languages manage to absorb change but withstand
    progress.

    • Marked as answer by Michel Andre Friday, October 19, 2012 7:25 PM
    Friday, October 19, 2012 3:46 PM
  • Windows Server 2012 with Hyper-V does not require SLAT.  Hyper-V on Windows 8 does require SLAT.  If you don't have the extended page table support on your desktop, I don't think you can install Hyper-V.  SLAT allows for the video experience on the desktop to be similar to what it was before Hyper-V was installed.  Since servers don't typically have high-end graphics cards, it is not an issue on Windows Server.

    tim

    Friday, October 19, 2012 4:22 PM
  • On Fri, 19 Oct 2012 16:22:32 +0000, Tim Cerling wrote:

    Windows Server 2012 with Hyper-V does not require SLAT.? Hyper-V on Windows 8 does require SLAT.? If you don't have the extended page table support on your desktop, I don't think you can install Hyper-V.? SLAT allows for the video experience on the desktop to be similar to what it was before Hyper-V was installed.? Since servers don't typically have high-end graphics cards, it is not an issue on Windows Server.

    Even if the system doesn't have SLAT (which Michel's systems does as per
    the coreinfo output shows), assuming that he's installed the x64 version of
    Windows 8, Hyper-V should still show as an available Feature, it would just
    be blocked from being installed. The only reason I can think of for it not
    to be listed is that he's installed the x86 version of the Windows 8
    client.


    Paul Adare
    MVP - Forefront Identity Manager
    http://www.identit.ca
    CChheecckk yyoouurr dduupplleexx sswwiittcchh..

    Friday, October 19, 2012 4:29 PM
  • That might be it, I have downloaded the wrong version, but 16GB of memory show up, but I guess its 4GB per process and the kernel handles that.

    /Michel

    Friday, October 19, 2012 7:23 PM
  • And awful many thanks for catching that :), I was afraid I was going to have to revert to Server 2012, and do some fiddling to get it to act as a workstation.

    /Michel

    Friday, October 19, 2012 7:25 PM
  • I also face this problem: Hyper-V grayed out.

    BIOS checked, Coreinfo checked.

    I initially had Windows 8 x64, then upgraded online to Windows 8 Pro. Could this be the issue?


    Regards

    Wednesday, October 31, 2012 5:14 PM
  • It's still daft on the part of MS to concede the desktop virtualisation market to VMWARE - hell how hard can it be to pop up a dialogue box that warns you about possible GFX impact when you install and enabling some kind of disable button to play games ? Come one guys you should be blowing VMWARE out of the market with this ...
    • Proposed as answer by jadelise Thursday, December 20, 2012 3:24 AM
    • Unproposed as answer by jadelise Thursday, December 20, 2012 3:25 AM
    Thursday, December 13, 2012 1:51 PM
  • From Windows 8 command prompt run "systeminfo.exe"

    Last 4 lines will show something like this, all answers must be yes

    Hyper-V Requirements:      VM Monitor Mode Extensions: Yes
                               Virtualization Enabled In Firmware: Yes
                               Second Level Address Translation: No
                               Data Execution Prevention Available: Yes

    This came from a Dell Inspirion 530s.  Windows 8 runs just fine, but no Hyper-V.

    Thursday, December 20, 2012 3:31 AM
  • CMD systeminfo states SLAT is NO but yet coreinfo - v states that EPT supports SLAT. Would that imply I may need to re-examine the BIOS settings?
    Friday, February 28, 2014 7:11 PM
  • I too am having this problem.  I enabled my AMD virtualization AFTER my Windows 8.1 install.  Yet I cannot see any way to enable Hyper-V.  Here is a screen grab from my Systeminfo from the shell:

    Hyper-V Requirements:      VM Monitor Mode Extensions: Yes
                               Virtualization Enabled In Firmware: Yes
                               Second Level Address Translation: Yes
                               Data Execution Prevention Available: Yes

    Do I have to re-install Windows?

    Saturday, March 01, 2014 2:18 PM
  • Yet I cannot see any way to enable Hyper-V.

    What exactly do you mean by the above? What have you tried so far?
    Saturday, March 01, 2014 3:35 PM
  • I too am having this problem.  I enabled my AMD virtualization AFTER my Windows 8.1 install.  Yet I cannot see any way to enable Hyper-V.  Here is a screen grab from my Systeminfo from the shell:

    Hyper-V Requirements:      VM Monitor Mode Extensions: Yes
                               Virtualization Enabled In Firmware: Yes
                               Second Level Address Translation: Yes
                               Data Execution Prevention Available: Yes

    Do I have to re-install Windows?


    Windows 8.1 or 8.1 Pro?  Hyper-V is only available on Pro editions.
    Monday, March 03, 2014 6:10 AM