Hortonworks Sandbox Forum

VT-x not supported

  • #28595
    liam Murray

    I just installed the sandbox and get the error “VT-X is not available”. I understand there’s a few posts on this issue, but is this something that may require me to buy a new machine (BIOS doesn’t appear to have virtualisation enabled) and how can I find out?

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  • Author
  • #28612

    Hi Liam,

    Have you checked that the VT-x setting is enabled in the Virtualization program you are using? In VirtualBox the setting is on the Settings->System->Acceleration page. This is the usual cause of this error. If this setting is on then I’ll need to know a bit more about what your host system is, i.e, OS, CPU and the like.



    even I am facing the same error.
    My machine config –
    Windows 7 on 32 bit OS with intel Core i5 processor, 4 GB RAM and 250 GB HDD

    00:00:01.692286 VMSetError: D:\tinderbox\win-4.2\src\VBox\VMM\VMMR3\VM.cpp(373) int __cdecl VMR3Create(unsigned int,const struct VMM2USERMETHODS *,void (__cdecl *)(struct VM *,void *,int,const char *,unsigned int,const char *,const char *,char *),void *,int (__cdecl *)(struct VM *,void *),void *,struct VM **); rc=VERR_VMX_MSR_LOCKED_OR_DISABLED
    00:00:01.692309 VMSetError: VT-x features locked or unavailable in MSR.
    00:00:01.694093 ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={db7ab4ca-2a3f-4183-9243-c1208da92392} aComponent={Console} aText={VT-x features locked or unavailable in MSR. (VERR_VMX_MSR_LOCKED_OR_DISABLED)}, preserve=false
    00:00:01.745758 Power up failed (vrc=VERR_VMX_MSR_LOCKED_OR_DISABLED, rc=E_FAIL (0X80004005))


    VirtualBox VM 4.2.14 r86644 win.x86 (Jun 21 2013 16:12:11) release log
    00:00:01.166282 Log opened 2013-07-01T22:59:57.967481900Z
    00:00:01.166293 OS Product: Windows 7
    00:00:01.166298 OS Release: 6.1.7601
    00:00:01.166301 OS Service Pack: 1
    00:00:01.166323 Host RAM: 3493MB total, 1095MB available
    00:00:01.166328 Executable: C:\Program Files\Oracle\VirtualBox\VirtualBox.exe
    00:00:01.166330 Process ID: 9736


    Never mind, I have got it working my enabling virtualization settings on BIOS level. I am good

    liam Murray

    The Acceleration tab is frozen though,so I can’t change settings.

    My specs are Windows XP Home Edition (I think 32 bit), Intel (R) Pentium (R), 512MB RAM, 232 GB HDD


    Hi Liam,

    It looks like you won’t be able to run the Sandbox even if we can get past the 32bit problem, the Sandbox requires a minimum of 4GB RAM.


    Dan McCarthy

    I was getting this error too. I have Win 7 x64 on my desktop. If I pick a 64bit OS, I get the VT error, but if I choose a 32bit OS for the guest in VirtualBox, it complains:

    This kernel requires an x86-64 CPU, but only detected an i686 CPU.
    Unable to boot – please use a kernel appropriate for your CPU.



    Hi liam,

    What type of hardware profile your machine has. It looks like it does not support VM. Have you run any VM on your machine before?


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