I'm running Windows Virtual PC (RC) on a Windows 7 (RTM) 64-bit host. When I create a new virtual machine and try to install 64-bit Windows 7 on that VM, I get "this CPU is not compatible with 64-bit mode."

Is there a way to create 64-bit virtual machines?

  • "Windows Virtual PC" is the product name, so that's why I used that as the tag. – CoderDennis Aug 23 '09 at 19:38
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    I found this odd myself, especially as there is separate x86 and x64 installers... – Rowland Shaw Aug 24 '09 at 16:24
  • After I asked this question, a duplicate was added to superuser via migration from serverfault. superuser.com/questions/28043/… – CoderDennis Aug 27 '09 at 15:13

Windows Virtual PC does not support 64-bit guests. You may want to look into VirtualBox or VMware. You may also want to see the answers to the similar question on Server Fault.

  • VirtualBox website says "VirtualBox is a general-purpose full virtualizer for x86 hardware" and makes no claim for (Intel) x64 architecture – Rowland Shaw Aug 24 '09 at 16:28
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    @Rowland, do some research: virtualbox.org/wiki/VBox_vs_Others – John T Aug 24 '09 at 16:37
  • @John T that only says "64 host OS support" - it doesn't specify which 64 bit architecture it supports (x64 or ia64, etc.) – Rowland Shaw Aug 25 '09 at 7:47
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    @Rowland, you aren't even looking for the right thing. A VM is considered a guest, not a host. – John T Aug 25 '09 at 15:57

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