My laptop specifications are:

  1. Intel Core i3 M350 2.27 GHZ
  2. 4G RAM DDR2
  3. MS Windows 64 bit is installed

I am trying to install OS X Mountain Lion 10.8.

The setups are:

  1. VMware Workstation 8 is installed.
  2. VMware Unlocker windows version is installed.
  3. Open OS X Mountain Lion.vmx

I got this error message "EFI VMware Virstual SCSI hard drive ... unsuccessful." At this point the virtual machine restarts so I'm at a loss as how to continue to run 10.8 on my VMWare software.

  • Where did you get OS X Mountain Lion.vmx? Have you checked with VMWare to see if they support OS X as a guest OS on your version and type of VMware engine? Some light searching shows me that OS X is only supported on VMWare fusion and ESXi 5.x and Fusion 5.x so looking to them for help might also be a dead end.
    – bmike
    Mar 21, 2013 at 15:42
  • 3
    Virtualizing OSX is only legal when using OSX Server. Just thought I should mention it...
    – Linuxios
    Mar 21, 2013 at 17:25
  • 1
    @Linuxios Virtualizing OS X client on OS X client has been allowed since 10.7 (a.k.a Lion.) Apr 3, 2013 at 0:05

1 Answer 1


A more or less official answer from a VMWare support forum moderator from what I can tell is at http://communities.vmware.com/thread/428763?tstart=825

In short. Windows CANNOT run an OSX guest OS. The OP in the linked thread is even running a Mac under bootcamp, and hangs at Apple logo on boot. Proper hardware emulation is the cited cause. There might even be a bit (pun intended) (intentionally) missing from BootCamp drivers to hinder such activity.

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