To start with the bad news. For now there is no solution. When Hyper-V is enabled, VMWare Workstation 9 simply refuses to install or to run. But there is a way to install and use VMWare Workstation 9 while having Hyper-V installed. The trick is to create an extra boot option. Here are the steps to take: At the command prompt, type the following: bcdedit /copy {default} /d “No Hypervisor” The above command should say: The entry was successfully copied to {guid}. Copy that guid to the clipboard including the curly braces. Now, type the following command: bcdedit /set {guid_hvoff} hypervisorlaunchtype off In the above command, replace {guid_hvoff} with what you copied in step ...