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I am currently using VMWare Workstation 6.5 to test the Windows 7 RC build 7100, and am particularly interested in evaluating the new "XP Mode" feature. However, since one of the prerequisites is hardware virtualization support, I am afraid this might not be possible under the isolation of a guest OS. Is there a configuration option in VMWare to allow this to work?

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up vote 5 down vote accepted

The Win7 XP Mode only works if your CPU supports "VT" (or AMD's equivalent).

It's unlikely that VMWare Workstation will emulate or otherwise expose the VT feature to guest O/Ses running under virtualisation, such that the guest O/S's own virtualisation host will work.

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That's my understanding too. – Chopper3 May 9 '09 at 11:09
Thanks. I was hoping there might be a way to "bypass" the guest isolation of the VT feature somehow -- similar to how you can choose to use a real hard drive partition directly instead of a virtual drive within the VM -- but it appears you are correct. – Tim Lara May 9 '09 at 19:18

I'm using virtual box and it works fine combined with my hardware virtualisation. Not sure about VMWare, but I should think it works there also, VMWare are generally on top of the latest virtualisation stuff.

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the OP is asking about running a virtual O/S inside another virtual O/S. – Alnitak May 9 '09 at 11:37

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