You will see a notification right in the middle of the screen and also in the system tray.Ĩ. Immediately after that, you will see that the application has started downloading the setup files required to install portable Virtualbox. Click the “ Download Installation file for Virtualbox” button.ħ. You can also choose to compress the files to save some precious space in your removable drive.Ħ. Select the checkboxes “ Extract the files for a 32 bit system” and “ Extract the files for a 64 bit system“.