Hyper-V Won't Enable in Windows 8

Question

So, I'm trying to develop an app for WP8, however I can't seem to make the emulator run... Why? Hyper-V won't enable!

I'm using a AMD FDX 8350 processor in a 970A-UD3 Gigabyte motherboard.

Here http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj863509(v=vs.105).aspx, Microsoft tells you to enable NP/RVI, SVM and NX in the BIOS and to disable Intel VT-d (only for Intel CPUs maybe?) and Trusted Execution, well, I was able to find SVM in my BIOS configuration and it was enabled by default... However, I can't find any of the others there so I'm not sure if they are properly configured or not, I've search all the BIOS menus and couldn't find anything rather then SVM.

Even only being able to confirm SVM, I tried to turn on Hyper-V through the Control Panel. It goes fine until the reboot... When Windows is turning off it begins to configure some changes, the strange thing is, that it only goes up to 30% and reboot, then upon coming back up it start applying the changes and goes only to 73% and fails... Then reboot again... Then try to "Configure Windows" then it tries to apply some updates (what?) and then fails at 73% again, then reboot... Then try again... Then fail... Then reboot... After 3 or 4 reboots it finally takes me to the desktop and guess what? Hyper-V is not there.

So the thing is... Someone that's using a Gigabyte motherboard knows how can I check for the missing features that I couldn't find and see if they are on or not? Because their buggy visual interfaced BIOS is completely worthless with so many missing options.

Answer 1

You get the Error 8007007e which means ERROR_MOD_NOT_FOUND:

C:\Users\André>err 8007007e
# as an HRESULT: Severity: FAILURE (1), FACILITY_WIN32 (0x7), Code 0x7e
# for hex 0x7e / decimal 126
  ERROR_MOD_NOT_FOUND                                            winerror.h
# The specified module could not be found.
# 1 matches found for "8007007e"

because a files of the servicing stack (winsxs\manifests\amd64_microsoft-windows-s..ingstack-base-extra_31bf3856ad364e35_6.3.9600.16470_none_0fca1bd2974614ab.manifest),the component which install updates, activates features in Windows since Vista is corrupted.

2014-02-22 14:22:07, Info                  CSI    000000a4 Begin executing advanced installer phase 24 (0x00000018) index 131 (0x0000000000000083) (sequence 156)
    Old component: [ml:330{165},l:328{164}]"Microsoft-Hyper-V-Drivers-Hypervisor-Bcd, Culture=neutral, Version=6.3.9600.16384, PublicKeyToken=31bf3856ad364e35, ProcessorArchitecture=amd64, versionScope=NonSxS"
    New component: [l:0]""
    Install mode: uninstall
    Installer ID: {3eca0b00-79bb-42b9-8421-a26a5cbb37e4}
    Installer name: [41]"Boot Configuration CSI Advanced installer"
2014-02-22 14:22:07, Info                  CSI    000000a5 Manifest hash for component [ml:280{140},l:200{100}]"amd64_microsoft-windows-s..ingstack-base-extra_31bf3856ad364e35_6.3.9600.16470_none_0fca1bd2974614ab" does not match expected value. 
 Expected:{l:32 b:5a1656a028f53682db2b0f6f8bbd463d09d9796905d8de4240739169431ee24d}
 Found:{l:32 b:2a104ce3fa57b5115405c252f96d77ac0eda17b8a373762aa5db28afe68ebee0}.
2014-02-22 14:22:07, Info                  CSI    000000a6 Looking for manifest in Backup Dir...
2014-02-22 14:22:07, Error                 CSI    000000a7 (F) Unable to load manifest for component [ml:280{140},l:200{100}]"amd64_microsoft-windows-s..ingstack-base-extra_31bf3856ad364e35_6.3.9600.16470_none_0fca1bd2974614ab"[gle=0x80004005]
2014-02-22 14:22:07, Error                 CSI    000000a8@2014/2/22:17:22:07.364 (F) base\wcp\componentstore\storelayout.cpp(2158): Store corruption detected in function ComponentStore::CRawStoreLayout::FetchManifestContent expression: 0
  FileHashMismatch on resource [127]"\winsxs\manifests\amd64_microsoft-windows-s..ingstack-base-extra_31bf3856ad364e35_6.3.9600.16470_none_0fca1bd2974614ab.manifest"[gle=0x80004005]
2014-02-22 14:22:07, Info                  CSI    000000a9 ERROR MAPPING HRESULT - No proper NTSTATUS mapping available.  Error is: "c015001a [Error,Facility=(0015),Code=26 (0x001a)]".

2014-02-22 14:22:07, Info                  CSI    000000aa@2014/2/22:17:22:07.676 Failed to load CSI AI DLL from keyform; falling back to Base-SS directory.

2014-02-22 14:22:07, Error                 CSI    000000ab@2014/2/22:17:22:07.676 (F) base\wcp\componentstore\com\advancedinstallers.cpp(80): Error HRESULT_FROM_WIN32(ERROR_MOD_NOT_FOUND) originated in function LoadHandlerDll expression: ((HRESULT)(::GetLastError()) <= 0 ? ((HRESULT)(::GetLastError())) : ((HRESULT) (((::GetLastError()) & 0x0000FFFF) | (7 << 16) | 0x80000000)))
[gle=0x80004005]

Because servicing stack is corrupted, DISM and sfc can't be used to repair Windows.

You must grab a good copy of the file from a second PC which has the Update KB2904440 installed, and replace the bad file with the clean copy.