Virtualbox Stopped Working After Installing Hypervisor

I got the message when I tried to run one of my VMs and got this or similar message about 64bit support:
VT-x/AMD-V hardware acceleration is not available on your system. Your 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot.

Turns out it’s something to do with Hypervisor on Windows 8.1!

Turning it off again and doing the restart dance fixed it.

VirtualBox of 64-Bit Debian Worked Yesterday But Now Cannot Detect 64-Bit CPU

About Danny

I.T software professional always studying and applying the knowledge gained and one way of doing this is to blog. Danny also has participates in a part time project called Energy@Home [http://code.google.com/p/energyathome/] for monitoring energy usage on a premise. Dedicated to I.T since studying pure Information Technology since the age of 16, Danny Tsang working in the field that he has aimed for since leaving school. View all posts by Danny → This entry was posted in Windows and tagged , , , , , . Bookmark the permalink.

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