Oracle virtual box fails to work on machine where hyper-v is installed

Consider this scenario:

  1. You have hyper-v installed on a windows server/client OS and it’s working fine
  2. You install oracle virtual box or any 3rd party virtualization application on machine and it fails with below error:
VT-x/AMD-V hardware acceleration is not available on your system. Certain guests 
(e.g. OS/2 and QNX) require this feature and will fail to boot without it.

Or vice-versa.

Turns out this behavior is by design. Many virtualization applications depend on hardware virtualization extensions that are available on most modern processors. This includes Intel VT-x and AMD-V. Only one software component can use this hardware at a time. The hardware cannot be shared between virtualization applications. Resolution steps for it are covered in the article link. Basically, it is to disable/remove hyper-v role.

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