Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I need to get virtual machine running. (I have windows 8 pro, hypervisor feature installed and checked virtualization settings in BIOS). I see hypervisor is not running message when I try to start a new VM. After bit of searching, I was instructed to set hypervisorlaunchtype to Auto.

When I tried to setup using bcdedit, I got the following error :

The boot configuration data store could not be opened.
The volume for a file has been externally altered so that the opened file is no longer valid.

Bit of history - I have windows 8 on dell inspiron 3520. I migrated my SATA HD to SSD (Disk copied using EZGigIV). I am using SSD as primary disk. I have no issues in booting.

I tried bootrec /rebuildallbcd. I got the following error :

A device attached to the system is not functioning

Please advice how to fix this problem.

share|improve this question
    
which bcdedit command have you use? –  magicandre1981 Oct 23 '13 at 4:06
    
never know there are multiple bcdedit. I used the one in system32 and in recovery console –  Lokeshwer Oct 23 '13 at 4:27
    
I mean the command line. What have you entered into the cmd? –  magicandre1981 Oct 23 '13 at 17:06
    
bcdedit /set hypervisorlaunchtype auto –  Lokeshwer Oct 24 '13 at 9:10
    
this should be the correct command: bcdedit /set {current} hypervisorlaunchtype auto –  magicandre1981 Oct 24 '13 at 16:50

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.