vt-x/amd-v hardware acceleration is not available

Discussions related to using VirtualBox on Windows hosts.
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NT
Posts: 2
Joined: 5. Apr 2014, 20:05

vt-x/amd-v hardware acceleration is not available

Post by NT »

Hello. I'm not very technical with hardware technology so request patience with my questions. I am trying to install Windows 8.1 on a 64 bit HP with a Windows 8.1 host. I have enable virtualization in the BIOS setting, but continue to get this error "vt-x/amd-v hardware acceleration is not available ...". I also find that Windows 8.1 64 bit or for that matter Ubuntu 64 bit is not listed in the dropdown box.

Is there a step I am missing?
Perryg
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Primary OS: Linux other
VBox Version: OSE self-compiled
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Re: vt-x/amd-v hardware acceleration is not available

Post by Perryg »

1) 64-bit guests need hardware-virtualzation enabled in the hosts bios.
2) when creating the 64-bit guest you must select 64-bit in General -> Basic -> version.
3) If running Windows as host you must make sure hyper-v or xp mode is not enabled on the host. MS does not play well and wants it all.
NT
Posts: 2
Joined: 5. Apr 2014, 20:05

Re: vt-x/amd-v hardware acceleration is not available

Post by NT »

Hello Perryg

Thank you for your reply.

I ran the microsoft utility coreinfo based on the information here:
Does your Windows 8.1 computer supports Hyper-V?
By Brian Burgess - Tech Page One January 31 2014
http://techpageone.dell.com/technology/ ... 0GrtPldWnE

The output I got was:

Coreinfo v3.21 - Dump information on system CPU and memory topology
Copyright (C) 2008-2013 Mark Russinovich
Sysinternals - http://www.sysinternals.com

Intel(R) Pentium(R) CPU B980 @ 2.40GHz
Intel64 Family 6 Model 42 Stepping 7, GenuineIntel
HYPERVISOR - Hypervisor is present
VMX - Supports Intel hardware-assisted virtualization
EPT - Supports Intel extended page tables (SLAT)


The minus or hyphen sign following the feature (VMX, etc.) tells me that my processor does not support hardware virtualization.

I also ran the Intel Processor Identification Utility which indicated Intel VT-x as not supported on my laptop.

I am documenting this for the benefit of those who have a 64 bit OS as their host OS and experiencing the frustration of failing to install a 64 bit OS in their VirtualBox.

My computer is a HP 2000 laptop model # HP 2000-2b53CA.
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