Oracle Virtual Box is a powerful virtualization software that can be used on Windows to install and run another operating systems such as Linux, Ubuntu and several other OS along side Windows. It is an Open Source Software (OSS) and is free. It is one of the most popular free virtualization software available today and is available for enterprise as well as for home use. It is a great alternative virtualization software to VM Ware.
If you are looking for ways to run Linux / Ubuntu on Windows, installing Linux / Ubuntu using virtual machines is the best way to go about. You may also try Ubuntu from a USB pen-drive, but files processed will not be saved in that case. In this short video, see how to install Ubuntu on Windows using Oracle Virtual Box.
How To Install Ubuntu On Windows Using Oracle Virtual Box?