Virtualbox not working under vagrant What am I doing wrong?

Question

virtual box

First, I entered vagrant init, then vagrant up, after which errors rained down:

There was an error while executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command and stderr is shown below.

Command: ["startvm", "168d55f5-83e9-4308-8ddc-27258259dcce", "--type", "headless"]

Stderr: VBoxManage: error: VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)
VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component ConsoleWrap, interface IConsole

Answer 1

Written in black and white:
Enable virtualization support in BIOS.