Dear Students
 Please prepare your laptop computer by 
1. Make sure it  is 64 bit computer (right click in your computer icon, and see the info)
2. Please download Virtual box from https://www.virtualbox.org/wiki/Downloads

once you installed, launch the software and create "new" then choose "Linux" and "64 bit" operating system,
if you cannot select 64 bit, please correct it by Bios setting following the instruction from "https://superuser.com/questions/866962/why-does-virtualbox-only-have-32-bit-option-no-64-bit-option-on-windows-7"  
(If you can choose Linux + 64 bit, you can skip the Bios Seeting)
See you then
Kiatichai