Windows Server 2012 not booting on ESXi 5.0

  • Create a new VM over the vSphere Client.
  • As “Guest Operating System” use Microsoft Windows Server 2008 R2 (64-bit)”
  • After VM has been created but before first power on, download the following bios file( ) and upload it to your ESXi datastore into the folder of the VM
  • Now open the .vmx file of the new VM and add the follwing lines

bios440.filename = “bios.440.rom”

mce.enable = TRUE

cpuid.hypervisor.v0 = FALSE

vmGenCounter.enable = FALSE

Power on VM and Server 2012 will install and run

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