As the official documentation says, you need to enable hardware virtualization (VT-x). to do it follow this site: http://www.howtogeek.com/213795/how-to-enable-intel-vt-x-in-your-computers-bios-or-uefi-firmware/
If this doesn’t help, then google it with your laptop model number or with you PC configuration. You must have to enable hardware virtualization (VT-x). And If you are using Hyper-V on a UEFI system you additionally need to disable Hyper-V in order to access VT-x.