Fix: Rebooting Windows 8 or 2012 Server or later virtual machines fail at the Microsoft Windows boot splash screen.

Windows2012-SoftResetTSC.ps1

<#
	.SYNOPSIS
	Add monitor_control.enable_softResetClearTSC = TRUE
  
	.DESCRIPTION
	Add monitor_control.enable_softResetClearTSC = TRUE to the virtual machines advanced configuration

	.Example
	./Windows2012-SoftResetTSC.ps1

	.Notes
	NAME:  Windows2012-SoftResetTSC.ps1.ps1
	LASTEDIT: 09/19/2016
	VERSION: 1.0
	KEYWORDS: VMware, vSphere, ESXi, Windows
   
	.Link
	http://mycloudrevolution.com/
 
 #Requires PS -Version 4.0
 #Requires -Modules VMware.VimAutomation.Core, @{ModuleName="VMware.VimAutomation.Core";ModuleVersion="6.3.0.0"}
 #>
$ExtraOptions = @{
  "monitor_control.enable_softResetClearTSC"="true";
  }

$vmConfigSpec = New-Object VMware.Vim.VirtualMachineConfigSpec

Foreach ($Option in $ExtraOptions.GetEnumerator()) {
  $OptionValue = New-Object VMware.Vim.optionvalue
  $OptionValue.Key = $Option.Key
  $OptionValue.Value = $Option.Value
  $vmConfigSpec.extraconfig += $OptionValue
  }

ForEach ($vm in (Get-VM |  where {$_.Guest.GuestID -like "windows8*"})){
  $vmv = Get-VM $vm | Get-View
  $state = $vmv.Summary.Runtime.PowerState
 	($vmv).ReconfigVM_Task($vmConfigSpec)
  if ($state -eq "poweredOn") {
    $vmv.MigrateVM_Task($null, $_.Runtime.Host, 'highPriority', $null)
    }
  }