How to Enable Intel VT-x in Your Computer’s BIOS or UEFI Firmware.
Modern CPUs include hardware virtualization features that help accelerate virtual machines created in VirtualBox, VMware, Hyper-V, and other apps. But those features aren’t always enabled by default.
Virtual machines are wonderful things. With virtualization apps, you can run an entire virtual computer in a window on your current system. Within that virtual machine, you can run different operating systems, test apps in a sandbox environment, and experiment with features without worry. In order to work , those virtual machine apps need hardware acceleration features built into modern CPUs. For Intel CPUs, this means Intel VT-x hardware acceleration. For AMD CPUs, it means AMD-V hardware acceleration.