title: Unable to start a VM image on VirtualBox
body: <p>I am unable to start any Ubuntu VM image that I create using the VirtualBox that I have installed on my PC.</p>
  
  <p>For example, I create a new VM -> select 64 bit Ubuntu -> allocate 1024 MB RAM -> Create a Virtual Hard drive now -> etc etc and finish up till the end. When I click on start I get the following error dialog immediately:</p>
  
  <p><img src="https://i.stack.imgur.com/0mWKl.png" alt="Error"></p>
  
  <p>I am using a Windows 7 - 64 bit machine with 4 GB RAM. The VirtualBox version that I have installed is <strong>4.3.16</strong> which happens to be the latest. I also tried with previous versions but with no success.</p>
  
  <p>I also confirmed that the Virtualization option is enabled in the BIOS Menu (so that doesn't seem to be the problem). </p>
  
  <p>The error log messages generated in the log file are as follows :</p>
  
  <pre><code>1660.1664: Log file opened: 4.3.16r95972 g_hStartupLog=0000000000000014 g_uNtVerCombined=0x611db110
  1660.1664: Calling main()
  1660.1664: SUPR3HardenedMain: pszProgName=VirtualBox fFlags=0x2
  1660.1664: SUPR3HardenedMain: Respawn #1
  1660.1664: System32:  \Device\HarddiskVolume1\Windows\System32
  1660.1664: WinSxS:    \Device\HarddiskVolume1\Windows\winsxs
  1660.1664: ProgDir:   \Device\HarddiskVolume1\Program Files
  1660.1664: ComDir:    \Device\HarddiskVolume1\Program Files\Common Files
  1660.1664: ProgDir32: \Device\HarddiskVolume1\Program Files (x86)
  1660.1664: ComDir32:  \Device\HarddiskVolume1\Program Files (x86)\Common Files
  1660.1664: '\Device\HarddiskVolume1\Program Files\Oracle\VirtualBox\VirtualBox.exe' has no   imports
  1660.1664: supHardenedWinVerifyImageByHandle: -&gt; 0 (\Device\HarddiskVolume1\Program Files\Oracle\VirtualBox\VirtualBox.exe)
  1660.1664: supR3HardNtEnableThreadCreation:
  1660.1664: supR3HardNtDisableThreadCreation: pvLdrInitThunk=0000000077afb800 pvNtTerminateThread=0000000077b20ae0
  1660.1664: supR3HardenedWinDoReSpawn(1): New child 1508.bbc [kernel32].
  1660.1664: supR3HardenedWinPurifyChild: PebBaseAddress=000007fffffda000 cbPeb=0x380
  1660.1664: supR3HardNtPuChFindNtdll: uNtDllParentAddr=0000000077ad0000 uNtDllChildAddr=0000000077ad0000
  1660.1664: supR3HardNtPuChTriggerInitialImageEvents: uLdrInitThunk=0000000077afb800 uNtTerminateThread=0000000077b20ae0
  1660.1664: supR3HardNtDisableThreadCreation: pvLdrInitThunk=0000000077afb800 pvNtTerminateThread=0000000077b20ae0
  1660.1664: supR3HardNtPuChTriggerInitialImageEvents: mapping view of ntdll.dll[2nd]
  1660.1664: supR3HardNtPuChTriggerInitialImageEvents: ntdll.dll[2nd] mapped at 00000000001a0000 LB 0x1aa000
  1660.1664: supR3HardNtPuChTriggerInitialImageEvents: mapping view of kernel32.dll
  1660.1664: supR3HardNtPuChTriggerInitialImageEvents: kernel32.dll mapped at 00000000779b0000 LB 0x11f000
  1660.1664: supR3HardNtPuChTriggerInitialImageEvents: mapping view of KernelBase.dll
  1660.1664: supR3HardNtPuChTriggerInitialImageEvents: KernelBase.dll mapped at 000007fefd920000 LB 0x6c000
  1660.1664: supR3HardNtPuChTriggerInitialImageEvents: Startup delay kludge #1: 31 ms
  1660.1664: supR3HardNtEnableThreadCreation:
  1660.1664: supHardNtVpScanVirtualMemory: enmKind=CHILD_PURIFICATION
  1660.1664:  *0000000000000000-fffffffffffeffff 0x0001/0x0000 0x0000000
  1660.1664:  *0000000000010000-fffffffffffeffff 0x0004/0x0004 0x0020000
  1660.1664:  *0000000000030000-000000000002bfff 0x0002/0x0002 0x0040000
  1660.1664:   0000000000034000-0000000000027fff 0x0001/0x0000 0x0000000
  1660.1664:  *0000000000040000-000000000003efff 0x0004/0x0004 0x0020000
  </code></pre>
  
  <p>I have also tried opening Ubuntu.iso image and a pre built Ubuntu.vdi image but no matter what I try I keep getting the same error. Could someone please help me in resolving this ?</p>