Windows 2008R2 Server Hyper-V wont start - System recently recovered or repaired

Hyper-V Is Not Working after System Recovery

Scenario:

​Cause:

A recovered or created boot configuration database may not have the required settings to enable Hyper-V to run. To verify this, open an administrative command prompt and type in BCDEDIT. Check the boot settings for the "identifier {current}" collection of settings and verify that the settings "nx" and/or "hypervisorlaunchtype" are missing.

Resolution:

From an administrative command prompt, type the following:

BCDEDIT /set nx OptOut

BCDEDIT /sec hypervisorlaunchtype Auto

Reboot the system and then verify that Hyper-V guests can be started.

Verifying that the Settings have been installed

Type in BCDEDIT from an Administrative command prompt and check that the nx and hypervisorlaunchtype settings appear as per the example below.

Note: If CPU Virtualisation features were disabled in the BIOS, and then enabled, the system will need to be physically turned off and then started for the setting to take effect.

  

Applies to:



Article ID: 129
Last updated: 13 Aug, 2013
Revision: 1
Third Party Products -> Windows Server -> Troubleshooting -> Windows 2008R2 Server Hyper-V wont start - System recently recovered or repaired
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