Thursday, September 19, 2013

Virtual Box doesn't accept 64 bit OS

When I tried to install BackTrack 5(64 bit) on my Ubuntu machine (32 Bit), it just thrown an error message as shown below.

Error message : VT-x/AMD-V hardware acceleration has been enabled, but is not operational. Your 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot.Please ensure that you have enabled VT-x/AMD-V properly in the BIOS of your host computer.

I found 2 types of solutions and applied both of them on laptop. Now it just works fine. They are explained in steps below.

Step 1 : Shutdown the PC(not Restart)
Step 2 : Turn on the PC and goto bios settings
Step 3 : Mine is Lenovo with Intel technology. It has Intel Virtual Technology option in configuration menu (For some PCs .. this will be under advanced settings)
Step 4 : Enable it (Its for enhancing the support to software based virtualisation solutions)
Step 5 : Save and Exit of bios
Step 6 : Continue with your installation of guest OS in virtual box.

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