Virtual Box doesn't accept 64 bit OS

Virtual Box doesn't accept 64 bit OS

Virtualization RaviTeja   5:34:00 PM

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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Windows 8 installation failure on Virtual box

Windows 8 installation failure on Virtual box

Windows 8 RaviTeja   9:59:00 PM

To install and run Windows 8 in Virtual environment, you need Hardware Virtualization Technology enabled which is hardware assisted and mainly depends on CPU / Processor of your Computer.
Though, Windows 8 setup starts but it crashes at later stage or VirtualBox throws critical error with Black Screen. Some users may also get Windows 8 Blue Screen of Death.

So, that is the main reason behind Why Windows 8 installation on Virtual machine or VirtualBox Failed. Either Hardware Virtualization is not enabled or not supported.

How to check whether Hardware Virtualization is supported?

Download Microsoft Hardware-Assisted Virtualization Detection Tool and open it. If it says this computer does not have Hardware-Assisted Virtualization then either is disabled or not Supported.

Check Virtualization Supprt

If not supported, you have no choice than making a clean installation. But, there are chances that it may be disabled so, to check that- Reboot into BIOS setup and find Virtualization Support menu and Enable it.
After enabling, you are good to go and try installing Windows 8 virtually again and chances are that you will succeed.
Note that Instructions to turn on hardware virtualization in your PC BIOS are specific to OEM models. It is important that after changing your BIOS settings the PC is completely shut down at the power switch before restarting so that the new BIOS settings can take place.
Mentioned above can be one of the major reason but not the only one. It can fail if Machine doesn’t meet minimum requirements like 1GB RAM, 1GHz and 20GB Space.

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via : Blogsolute
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