VirtualBox

VirtualBox allows you to run an entire Operating System. There are advantages and disadvantages of using VertualBox.

Advantages  

• The size of the installation doesn't have to be predetermined.
• You do not need to reboot in order to switch between two Operating System.
• The Virtual machine will use your original Operating System Internet connection.
• The Virtual machine will setup its own video configuration.
• It's low commitment. 

Disadvantages

• In order to get good performance , you need at least 512MB RAM. The best recommend is 1 GB RAM.
• Every time you want to use your secondary Operating System, you have to wait two boot times.

Installation process

First you have to download VirtualBox. Visit http://www.virtualbox.org/wiki/Downloads and download VirtualBox. 

• Double click on VirtualBox setup file. Then following window will appears. 

     

Click Next

     

Accept terms and click Next

 Select Browse and select the location to install VirtualBox. Then Press Next.

Finally Click Install and wait until installation process gets finished.

• Congratulation ,  Now you have installed VirtualBox  Software.

-Tharindu Dilshan-