Home > Hyper-V, Windows 2012 R2 > Hyper-V Damaged VHDX MBR

Hyper-V Damaged VHDX MBR

So today was a fun day, one of our development office host servers had a storage issue this week and fried the volume where all the development virtual machines were running on.

I managed to fix the storage volume however I found a number of VM’s still would not start. The error indicated there was no boot volume.

To fix the issue and repair a Windows 2012 R2 Start-up issue I followed the below steps:

 

1. Put the Windows Server 2012 R2 installation disc in the disc drive, and then start the computer.
2. Press any key when the message indicating “Press any key to boot from CD or DVD …”. appears.
3. Select a language, time, currency, and a keyboard or another input method. Then click Next.
4. Click Repair your computer.
5. Click the operating system that you want to repair, and then click Next.
6. In the System Recovery Options dialog box, click Command Prompt.
7. Type Bootrec /RebuildBcd, and then press ENTER.

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Categories: Hyper-V, Windows 2012 R2
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