Create Ubuntu 16.04 LTS virtual machine with Vagrant and VirtualBox.
Install VirtualBox: https://www.virtualbox.org/wiki/Downloads
Install VirtualBox Extension Pack
Install Vagrant: https://www.vagrantup.com/downloads.html
Open CMD:
set HTTP_PROXY=http://192.168.50.77:8080/ # for bash: export HTTP_PROXY=http://192.168.50.77:8080/
set HTTPS_PROXY=http://192.168.50.77:8080/ # for bash: export HTTP_PROXY=http://192.168.50.77:8080/
vagrant plugin install vagrant-disksize # vagrant plugin update vagrant-disksize
vagrant up # vagrant up --provision ; vagrant reload --provision
vagrant halt # To stop VM
vagrant destroy -f # To destroy VM