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I have a fresh install of Windows 8 Pro on a new PC and have done for some weeks. On Friday I hit the shutdown option Update and Restart. On the Saturday (yesterday) I turned on my machine to greeted with the Windows 8 Logo then a blank screen and doesn't boot at all into Windows (And not I have checked both monitors and they connected fine.

What was I doing just BEFORE "Update and Restart".......

  1. Enabled UEFI on the BIOS
  2. Installed the Hyper-V Windows 8 Features
  3. Created and installed a Virtual Switch
  4. Created and installed a Virtual Machine and installed Windows 8.
  5. Onto the VM I installed Visual Studio 2012 Web (MVC4) and SQL Server Express 2012 (NOT LocalDb)

Then after than I ran the Windows Update on the main PC and pressed "Update and Restart".

What have I tried doing to resolve this issue?

Booted (F12) using the OEM Disc. I have then Repair your computer->Troubleshoot....

1.1 Advanced Options

1.2 Automatic Repair

1.3 This fails and I get the following error:

1

then I tried....

2.1 Refresh PC

2.2 I get the following error:

"The Drive where Windows is installed is locked. Unlock the drive and try again"

then I tried....

3.1 Reset PC

3.2 I get the following error:

"Unable to reset your PC. A required drive partition is missing"

then I tried....

4.1 System Restore

4.2 This fails and I get the following error:

2

So I'm completely at a loss. I presume if I unlock the primary disk I should be able to boot or at least repair? Anyway I really don't want to wipe and uninstall if possible.

share|improve this question
    
Sounds like the problem is with Hyper-V I hope you have a backup of your system because if the normal tools are not working you are in trouble. –  Ramhound Dec 16 '12 at 13:40
    
Only File History at the moment. I have a HDD on order for that purpose! I suppose a clean install is in order then. –  garfbradaz Dec 16 '12 at 13:45
    
The system restore error is an interesting one. I recently managed to get that to work through the HP recovery options (Esc, followed by F10 at the BIOS splash screen) - Advanced Options => System Restore from there lets select an operating system (Windows 8 as the only option). Of course, this won't work if you don't have an OEM recovery option. There has to be some way to get Windows 8 to do this by itself, but I don't know how yet. My problem was also a failure to boot just after installing Hyper-V, though I never got as far as creating a VM, and mine was always in UEFI mode. –  Bob Dec 16 '12 at 22:26

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