If you get the above screen and ConversionBox seems not to progress any further then either VT-X or AMD-V is not enabled or it is not supported on your machine.

Most recent machines will either have AMD-V or VT-X  but it is not always enabled in your  BIOS.

How to check if your machine is VT-X capable and if it is enabled:


How to enable VT-X in the BIOS: