You can enable VT-x from BIOS of your computer.
- Reboot laptop and use ‘Escape’ to bring up boot menu
- Key ‘F10’ to enter the BIOS Setup
- Hit Tab key twice to move to ‘System Configuration’ options
- Ensure that the ‘Virtualization Technology’ checkbox is checked
- Press F10 to Save and Exit
- Continue with laptop boot and VT-x should be enabled now