The host supports Intel VT-x, but Intel VT-x is disabled

"The host supports Intel VT-x, but Intel VT-x is disabled" is thrown -  on trying to start a virtual machine e.g using VMware Player; when the Virtual Technology(VT) is disabled from system BIOS Settings.

The host supports Intel VT-x, but Intel VT-x is disabled

Steps to fix this and run virtual machines successfully :-

1. Close all the application and restart the System.
2. Press F10 on system startup, to go to Bios Settings
3. Enable the Virtual Settings from Bios Settings > System Configuration 
4. Save the Changes and Start the System.

Video link :

Now try to start your virtual machine :) it should start without any error now :)