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windows 8 on virtualbox

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Posted

I'm trying to install windows 8 on virtualbox but I'm getting this error:
[b]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.[/b]
[b]Please ensure that you have enabled VT-x/AMD-V properly in the BIOS of your host computer.[/b]

I have hyperthreading enabled in bios, what else could be wrong? This appears in both 32 and 64 bit versions.

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Posted

Has the VT-x/AMD-V options been selected via the VM settings?

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Posted

[quote name='Tony.' timestamp='1343168008' post='595031037']
Has the VT-x/AMD-V options been selected via the VM settings?
[/quote]
Yes!

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Posted

VT-x/AMD-V is [b]not [/b]hyper threading. Its the hardware virtualization layer and if you do not have an option for that in your BIOS, either your motherboard or CPU do not support it.

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Posted

I had the same issue when trying to run Windows 7 x64 under Linux Mint 13 64-bit running virtual box. I had to switch over to running Windows 7 x86 guest instead. I didn't research the issue further either, but a switch to the 32bit guest OS was a work around. Could be that the 3770k I'm running doesn't support VT-x.

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Posted

Try entering your Computer's BIOS and ensure Virtualization is enabled.

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Posted

[quote name='TheDisneyMagic' timestamp='1343168505' post='595031059']
Try entering your Computer's BIOS and ensure Virtualization is enabled.
[/quote]

I didn't even know where it was...now it worked.

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