If you want to add a Hyper-V Role on Windows Server 2012, under
VMware ESXI 5.1, you may receive the error
message “Hyper-V cannot be installed: A hypervisor is already running.”
To fix this you need to do the
following:
- First, shut down the Windows 2012 Server virtual machine on ESXI 5.1
- Download and modify the .vmx file associated with your virtual machine, from ESXI server.
- Add the following lines to the end of the .vmx file:
·
hypervisor.cpuid.v0
= FALSE
·
mce.enable =
TRUE
·
vhv.enable = TRUE
- Upload the new .vmx file to ESXI Server
- Restart your virtual machine.
Use the above at your
own Risk.
