Free download and Installation of Ubuntu on Virtual Box on windows 8.1
On a single machine if we want to run separate OS (other than host) we can achieve this using Virtual box.
You can download virtual box tool from
https://www.virtualbox.org
For full instruction can refer a video on my channel for the same. Then on this virtual machine can install other OS. In this video I have taken the example of Ubuntu.
You can download ubuntu from
https://www.ubuntu.com
ubuntu download
