Since it has a better market share coverage, Microsoft Hyper-V holds the 8th spot in Slintel’s Market Share Ranking Index for the Virtualization Platform category, while VirtualBox holds the 10th spot. The bcdedit command with no arguments will list the current settings, so the status of the hypervisorlaunchtype setting can be verified before and after the update. In the Virtualization Platform market, Microsoft Hyper-V has a 2.15 market share in comparison to VirtualBox’s 1.48. It may be necessary to run the command prompt as an administrator in order to issue the bcdedit command. In other words, Hyper-V must be turned off in order to use VirtualBox.įurther research identified a way to turn off Hyper-V. The hypervisor blocks all other calls to the VT hardware.” The TechNet discussion is found here.
It turns out that "when hyper-V is installed on Windows 8 Pro, the hypervisor is running all the time underneath the host OS, and only one thing can control the VT hardware at a time for stability. I knew that VT-x was configured and working on the laptop, because Hyper-V requires it, so why wasn’t VIrtualBox recognizing it?Ī little research turned up the following information posted to the TechNet forums by a Microsoft MVP. Examining the settings for the virtual machine, I noticed that I was unable to access the tabs that contained the Hardware Virtualization settings, including VT-x.
It failed miserably with very poor performance and frequent crashes. So, I installed VirtualBox on my Windows 8.1 Pro laptop (which already had Hyper-V installed on it), configured the virtual machine, and attempted to start it up. I recently wanted to try out a virtual machine that was pre-built for Oracle’s VirtualBox.
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