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You need to make sure the BIOS setting enabling Hyper-V is ON. It may be OFF or disabled.
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You need to make sure the BIOS setting enabling Hyper-V is ON. It may be OFF or disabled.

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Thanks for getting back to me. When I go into the BIOS , I can't see any setting which matches those mentioned in the posts (there is no standardisation of names for this stuff it seems) , but when I go to this post: <br />
<a href="http://www.howtogeek.com/73318/how-to-check-if-your-cpu-supports-second-level-address-translation-slat/" rel="ugc">http://www.howtogeek.com/73318/how-to-check-if-your-cpu-supports-second-level-address-translation-slat/</a><br />
<br />
which suggests downloading coreinfo.exe , I get exactly the screen shot for 'Supports SLAT' for Intel...
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Thanks for getting back to me. When I go into the BIOS , I can't see any setting which matches those mentioned in the posts (there is no standardisation of names for this stuff it seems) , but when I go to this post:
http://www.howtogeek.com/73318/how-to-check-if-your-cpu-supports-second-level-address-translation-slat/ [http://www.howtogeek.com/73318/how-to-check-if-your-cpu-supports-second-level-address-translation-slat/]

which suggests downloading coreinfo.exe , I get exactly the screen shot for 'Supports SLAT' for Intel...

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The BIOS setting John is referring to will not say &quot;Hyper-V&quot; but will be labeled either vm-x or amd-v or have a friendly name like &quot;Virtualization&quot;. <br />
<br />
You also need to make sure that Data Execution Prevention is enabled on the CPU as well. In the BIOS it will be labeled something like NX, XD, no execute, or execute disable.
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The BIOS setting John is referring to will not say "Hyper-V" but will be labeled either vm-x or amd-v or have a friendly name like "Virtualization".

You also need to make sure that Data Execution Prevention is enabled on the CPU as well. In the BIOS it will be labeled something like NX, XD, no execute, or execute disable.

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I think my BIOS has a setting VD-T (Lenovo)
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I think my BIOS has a setting VD-T (Lenovo)

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Getting into the BIOS is not like the old days with these WIn8.1 laptops....do you not believe in the screenshot in :<br />
<a href="http://www.howtogeek.com/73318/how-to-check-if-your-cpu-supports-second-level-address-translation-slat/" rel="ugc">http://www.howtogeek.com/73318/how-to-check-if-your-cpu-supports-second-level-address-translation-slat/</a><br />
<br />
I'm looking at the console output now, its saying:<br />
HYPERVISORT - Hypervisor is present<br />
VMX &nbsp;* Supports Intel hardware-assisted virtualization<br />
EPT * Supports Intel extended page tables (SLAT)<br />
<br />
you still think the BIOS might be wrong?
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Getting into the BIOS is not like the old days with these WIn8.1 laptops....do you not believe in the screenshot in :
http://www.howtogeek.com/73318/how-to-check-if-your-cpu-supports-second-level-address-translation-slat/ [http://www.howtogeek.com/73318/how-to-check-if-your-cpu-supports-second-level-address-translation-slat/]

I'm looking at the console output now, its saying:
HYPERVISORT - Hypervisor is present
VMX  * Supports Intel hardware-assisted virtualization
EPT * Supports Intel extended page tables (SLAT)

you still think the BIOS might be wrong?

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You need to ensure BIOS is correct. <br />
<br />
Set MSconfig to boot to Safe Mode, restart and see if you can press F1 (or whatever) to get into BIOS.<br />
<br />
I had to set my BIOS for this setting.
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You need to ensure BIOS is correct.

Set MSconfig to boot to Safe Mode, restart and see if you can press F1 (or whatever) to get into BIOS.

I had to set my BIOS for this setting.

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Right , I'm in the BIOS, the only VM'y looking setting i can see is Vitualization Technology &nbsp;,setting is 'VT-x only' or 'disabled', its on 'VT-x only', is there anything else?
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Right , I'm in the BIOS, the only VM'y looking setting i can see is Vitualization Technology  ,setting is 'VT-x only' or 'disabled', its on 'VT-x only', is there anything else?

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VT-X should be ENABLED for Hyper-V to work (not disabled or OFF).
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VT-X should be ENABLED for Hyper-V to work (not disabled or OFF).

Its been on 'VT-x only' , so does that mean the BIOS is ok?

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That should be OK and then Hyper-V should install.
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That should be OK and then Hyper-V should install.

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Mmmmm.....its been on that setting all the time, but still no Hyper-V listed in Windows features. Anywhere else to go?
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Mmmmm.....its been on that setting all the time, but still no Hyper-V listed in Windows features. Anywhere else to go?

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Hyper-V requires <br />
<br />
64-bit OS / Computer<br />
VT-X<br />
and Execute Disable XD<br />
<br />
See this Microsoft article<br />
<br />
<a href="http://blogs.technet.com/b/iftekhar/archive/2010/08/09/enable-hardware-settings-in-bios-to-run-hyper-v.aspx" rel="ugc">http://blogs.technet.com/b/iftekhar/archive/2010/08/09/enable-hardware-settings-in-bios-to-run-hyper-v.aspx</a>
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Hyper-V requires

64-bit OS / Computer
VT-X
and Execute Disable XD

See this Microsoft article

http://blogs.technet.com/b/iftekhar/archive/2010/08/09/enable-hardware-settings-in-bios-to-run-hyper-v.aspx [http://blogs.technet.com/b/iftekhar/archive/2010/08/09/enable-hardware-settings-in-bios-to-run-hyper-v.aspx]

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Its a pretty new laptop, I think its a current model, it came with Win8 pre-installed...if that's any help.
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Its a pretty new laptop, I think its a current model, it came with Win8 pre-installed...if that's any help.

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I look in Windows Features and Hyper-V is there to enable. <br />
<br />
ThinkPad X230 Windows 8.1 Pro 64-bit, now Windows 10 Pro 64-bit<br />
<br />
Make sure Windows 8 is Windows 8 Pro and not HOME.
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I look in Windows Features and Hyper-V is there to enable.

ThinkPad X230 Windows 8.1 Pro 64-bit, now Windows 10 Pro 64-bit

Make sure Windows 8 is Windows 8 Pro and not HOME.

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You know what i think it is, and i'm dumbfoudned i didnt' know before, but I think it has to be Win8 pro....i didn't even know there was a Pro windows 8....
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You know what i think it is, and i'm dumbfoudned i didnt' know before, but I think it has to be Win8 pro....i didn't even know there was a Pro windows 8....

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Yes, if it only says &quot;Windows 8&quot; then it's not the pro version.
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Yes, if it only says "Windows 8" then it's not the pro version.

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Sorry for being such a numpty. I'm downloading the Win 10 Enterprise now..
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Sorry for being such a numpty. I'm downloading the Win 10 Enterprise now..

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<i>@Sorry for &nbsp;...</i> &nbsp;&lt;-- Hey! &nbsp;No worries. We are all here to help you. Thanks and good luck.
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@Sorry for  ...  <-- Hey!  No worries. We are all here to help you. Thanks and good luck.

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<div class="content wysiwyg-content">
I'm trying to run the Windows phone emulator which apparently requires Hyper-V but i keep getting 'Can't run Hyper-V' error. I can't see hyper-V listed in the 'Turn windows feature on/off' list, but the phone SDK installs ok, i run coreinfo.exe -V which tells me that my laptop has the required BIOS settings (its a newish Tosh satellite with Intel, Win 8.1), &nbsp;what else is there?
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</div>


I'm trying to run the Windows phone emulator which apparently requires Hyper-V but i keep getting 'Can't run Hyper-V' error. I can't see hyper-V listed in the 'Turn windows feature on/off' list, but the phone SDK installs ok, i run coreinfo.exe -V which tells me that my laptop has the required BIOS settings (its a newish Tosh satellite with Intel, Win 8.1),  what else is there?

Hyper-V

Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems and supersedes Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V Server supports remote access via Remote Desktop Connection. Administration and configuration of the host OS and the guest virtual machines is generally done over the network.

Microsoft Virtual Server was a virtualization solution that facilitated the creation of virtual machines on the Windows XP, Windows Vista and Windows Server 2003 operating systems. Virtual machines are created and managed through a web-based interface that relies on Internet Information Services (IIS) or through a Windows client application tool called VMRCplus. Features included Linux guest operating system support, Virtual Disk Precompactor, symmetric multiprocessing (SMP), x64 host operating system support, the ability to mount virtual hard drives on the host machine and additional operating systems support, including Windows Vista, and a volume shadow copy writer.