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This will open the command line terminal in the administrator mode as shown below. Once it shows up, right click on it and select Run as Administrator. In the first step, you need to open Windows Command line terminal by typing CMD on the bottom Search area. How to Enable Nested VT-X/AMD-V in VirtualboxĪlso Read: How to Display Nth Column of a File or an output using Windows Command Line Step 1: Open CMD So before solving this error I thought to write an article about this so that it will help you guys as well in case you are also facing the same error. When I further checked, I found that an option called Enable Nested VT-X/AMD-V under System->Processor is greyed out and hence causing this error. Last night when I was trying to bring up a VM using vagrant in my Ubuntu system which is actually running on Oracle VirtualBox, I was facing Stderr: VBoxManage: error: VT-x is not available (VERR_VMX_NO_VMX) error. In this article, I will explain how to enable Nested VT-X/AMD-V in Virtualbox.
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