Question

I bought Windows 8.1 pro so I could use the Hyper-V Virtualisation. 
I have the correct Hardware

 - Intel(R) Core(TM) i5-4200M CPU @ 2.5GHZ
 - Toshiba C55-A-1N1.

In TaskManager->Performance it says
Virtualisation:       Disabled
Hyper-V support:      Yes

In Turn Windows features on or off Window for Hyper-V it says
Hyper-V                                - ticked with a square tick(Partial tick)
    Hyper-V Management Tools           - ticked
         Hyper-V GUI Management Tools  - ticked 
         Hyper-V Module for Windows PowerShell
                                       - ticked.
    Hyper-V Platform                   - not able to tick (greyed out)

Hyper-V manager opens but I cannot create a Virtual Machine.

The laptop manufacture Toshiba have assured me that the laptop has the 
capability and it is a Microsoft problem. 
I spent 4+ hours getting bounced around Microsoft tele-operators/technicians 
repeating the same problem to each. I am now waiting on a call back I was 
promised two days ago. I am starting to think there is a known problem that 
no-body want to admit. 

So the question is.
1. Does anyone know how to fix this? or 
2. Is anyone aware of a bug in Windows 8.1 Pro resulting in Hyper-V not working? 

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Continuation after Answer from varun_mc
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This is the message I get from hovering over the greyed out checkbox Hyper-V Platform in Windows  Features.
"Hyper-V cannot be installed: Virtuallisation support is disabled in the firmware."

This could mean Toshiba has turned it off for security or something. 
The output from coreinfo does not mention EPT, see below.
**********************************************************************
Intel(R) Core(TM) i5-4200M CPU @ 2.50GHz
Intel64 Family 6 Model 60 Stepping 3, GenuineIntel
Microcode signature: 00000016
HTT         *   Hyperthreading enabled
HYPERVISOR  -   Hypervisor is present
VMX         *   Supports Intel hardware-assisted virtualization
SVM         -   Supports AMD hardware-assisted virtualization
X64         *   Supports 64-bit mode

SMX         -   Supports Intel trusted execution
SKINIT      -   Supports AMD SKINIT

NX          *   Supports no-execute page protection
SMEP        *   Supports Supervisor Mode Execution Prevention
SMAP        -   Supports Supervisor Mode Access Prevention
PAGE1GB     *   Supports 1 GB large pages
PAE         *   Supports > 32-bit physical addresses
PAT         *   Supports Page Attribute Table
PSE         *   Supports 4 MB pages
PSE36       *   Supports > 32-bit address 4 MB pages
PGE         *   Supports global bit in page tables
SS          *   Supports bus snooping for cache operations
VME         *   Supports Virtual-8086 mode
RDWRFSGSBASE    *   Supports direct GS/FS base access

FPU         *   Implements i387 floating point instructions
MMX         *   Supports MMX instruction set
MMXEXT      -   Implements AMD MMX extensions
3DNOW       -   Supports 3DNow! instructions
3DNOWEXT    -   Supports 3DNow! extension instructions
SSE         *   Supports Streaming SIMD Extensions
SSE2        *   Supports Streaming SIMD Extensions 2
SSE3        *   Supports Streaming SIMD Extensions 3
SSSE3       *   Supports Supplemental SIMD Extensions 3
SSE4a       -   Supports Streaming SIMDR Extensions 4a
SSE4.1      *   Supports Streaming SIMD Extensions 4.1
SSE4.2      *   Supports Streaming SIMD Extensions 4.2

AES         *   Supports AES extensions
AVX         *   Supports AVX intruction extensions
FMA         *   Supports FMA extensions using YMM state
MSR         *   Implements RDMSR/WRMSR instructions
MTRR        *   Supports Memory Type Range Registers
XSAVE       *   Supports XSAVE/XRSTOR instructions
OSXSAVE     *   Supports XSETBV/XGETBV instructions
RDRAND      *   Supports RDRAND instruction
RDSEED      -   Supports RDSEED instruction

CMOV        *   Supports CMOVcc instruction
CLFSH       *   Supports CLFLUSH instruction
CX8         *   Supports compare and exchange 8-byte instructions
CX16        *   Supports CMPXCHG16B instruction
BMI1        *   Supports bit manipulation extensions 1
BMI2        *   Supports bit manipulation extensions 2
ADX         -   Supports ADCX/ADOX instructions
DCA         -   Supports prefetch from memory-mapped device
F16C        *   Supports half-precision instruction
FXSR        *   Supports FXSAVE/FXSTOR instructions
FFXSR       -   Supports optimized FXSAVE/FSRSTOR instruction
MONITOR     *   Supports MONITOR and MWAIT instructions
MOVBE       *   Supports MOVBE instruction
ERMSB       *   Supports Enhanced REP MOVSB/STOSB
PCLMULDQ    *   Supports PCLMULDQ instruction
POPCNT      *   Supports POPCNT instruction
LZCNT       *   Supports LZCNT instruction
SEP         *   Supports fast system call instructions
LAHF-SAHF   *   Supports LAHF/SAHF instructions in 64-bit mode
HLE         -   Supports Hardware Lock Elision instructions
RTM         -   Supports Restricted Transactional Memory instructions

DE          *   Supports I/O breakpoints including CR4.DE
DTES64      *   Can write history of 64-bit branch addresses
DS          *   Implements memory-resident debug buffer
DS-CPL      *   Supports Debug Store feature with CPL
PCID        *   Supports PCIDs and settable CR4.PCIDE
INVPCID     *   Supports INVPCID instruction
PDCM        *   Supports Performance Capabilities MSR
RDTSCP      *   Supports RDTSCP instruction
TSC         *   Supports RDTSC instruction
TSC-DEADLINE    *   Local APIC supports one-shot deadline timer
TSC-INVARIANT   *   TSC runs at constant rate
xTPR        *   Supports disabling task priority messages

EIST        *   Supports Enhanced Intel Speedstep
ACPI        *   Implements MSR for power management
TM          *   Implements thermal monitor circuitry
TM2         *   Implements Thermal Monitor 2 control
APIC        *   Implements software-accessible local APIC
x2APIC      -   Supports x2APIC

CNXT-ID     -   L1 data cache mode adaptive or BIOS

MCE         *   Supports Machine Check, INT18 and CR4.MCE
MCA         *   Implements Machine Check Architecture
PBE         *   Supports use of FERR#/PBE# pin

PSN         -   Implements 96-bit processor serial number

PREFETCHW   *   Supports PREFETCHW instruction

Maximum implemented CPUID leaves: 0000000D (Basic), 80000008 (Extended).

Logical to Physical Processor Map:
**--  Physical Processor 0 (Hyperthreaded)
--**  Physical Processor 1 (Hyperthreaded)

Logical Processor to Socket Map:
****  Socket 0

Logical Processor to NUMA Node Map:
****  NUMA Node 0

No NUMA nodes.

Logical Processor to Cache Map:
**--  Data Cache          0, Level 1,   32 KB, Assoc   8, LineSize  64
**--  Instruction Cache   0, Level 1,   32 KB, Assoc   8, LineSize  64
**--  Unified Cache       0, Level 2,  256 KB, Assoc   8, LineSize  64
****  Unified Cache       1, Level 3,    3 MB, Assoc  12, LineSize  64
--**  Data Cache          1, Level 1,   32 KB, Assoc   8, LineSize  64
--**  Instruction Cache   1, Level 1,   32 KB, Assoc   8, LineSize  64
--**  Unified Cache       2, Level 2,  256 KB, Assoc   8, LineSize  64

Logical Processor to Group Map:
****  Group

****************************************************************************  

The intel product description as described on their website
(http://ark.intel.com/products/76348/Intel-Core-i5-4200M-Processor-3M-Cache-up-to-3_10-GHz) 
states that ETP is part of the package. See the relevant section below.

Advanced Technologies
Intel® Turbo Boost Technology ‡ 2.0
Intel® vPro Technology ‡    No
Intel® Hyper-Threading Technology ‡     Yes
Intel® Virtualization Technology (VT-x) ‡   Yes
Intel® Virtualization Technology for Directed I/O (VT-d) ‡  No
Intel® VT-x with Extended Page Tables (EPT) ‡   Yes
Intel® TSX-NI   Yes
Intel® 64 ‡     Yes
Enhanced Intel SpeedStep® Technology    Yes
Thermal Monitoring Technologies Yes
Intel® Identity Protection Technology ‡ Yes
Intel® VT-x with Extended Page Tables (EPT) ‡   Yes

I guess from now on I will be wanting to see something working before I pay. 
Pretty hard when you are buying over the internet.

Answer 1

将鼠标悬停在已禁用的“Hyper-V平台”选项上可以提示您禁用它的原因： enter image description here

以下是我要检查的一些事情：

确保在BIOS中启用了硬件辅助虚拟化。
确保在BIOS中启用了数据执行保护（DEP）。
确保您的处理器是64位并具有二级地址转换（SLAT）功能。然后确认在BIOS中启用了SLAT。

您可以使用Sysinternal的CoreInfo.exe来确定您的计算机是否支持虚拟化和SLAT。工具可以从Microsoft Technet站点下载：http://download.sysinternals.com/files/Coreinfo.zip

从提升的命令提示符运行“CoreInfo.exe -v”。

Coreinfo v3.31 - Dump information on system CPU and memory topology
Copyright (C) 2008-2014 Mark Russinovich
Sysinternals - www.sysinternals.com

Intel(R) Xeon(R) CPU E5-2620 v2 @ 2.10GHz
Intel64 Family 6 Model 62 Stepping 4, GenuineIntel
Microcode signature: ******* 

HYPERVISOR      -       Hypervisor is present
VMX             *       Supports Intel hardware-assisted virtualization
EPT             *       Supports Intel extended page tables (SLAT)

如果您在此处看到“ - ”，则表示您的处理器不支持SLAT;如果它是“*”，那么它支持SLAT。理想情况下，在启用Hyper-V之前，应该看到上面的输出。

这是一篇更详细的MSDN文章： http://msdn.microsoft.com/en-us/library/windows/apps/jj863509(v=vs.105).aspx

Hyper V Windows 8.1 Pro无法运行。在BIOS中启用虚拟化

1 个答案: