Hey people, In this tutorial I'm going to show you how to dual boot a computer so you can run two or more OS. There are multiple ways to do it, but according to me the simplest way is using a live USB drive. In this instructable I will cover booting Windows, Ubuntu and Chrome OS.

I will also show you how to run Ubuntu and Chrome OS, without installing them on your hard disk.

Another option to try out multiple OS is using a virtual machine that I will explain in an different instructable.

Step 1: Requirements

This process requires that you have...

An eight GB USB Flash drive
Enough hard disk space

The flash drive is required to carry out the process unless, you like burning DVDs and booting it form that (I would not recommend this). Booting from a DVD is a slower process all together.

Step 2: Ubuntu

Installing Ubuntu is a fairly simple process, Ubuntu is my favorite Linux OS,

As it is easy to use,
Has grate community support,
And free of cost.

Here is how you can install it, download the latest version of OS form Ubuntu home page. If you have a windows operating system you need to install Power ISO this is for a 64 bit OS. If you are installing a 32 bit OS Power ISO will work fine and another alternative to it is Win32 Disk Image maker (this won't work for 64 bit OS).

You can open the software if you are using power ISO the option can be found under the tools category, "make bootable USB" is the option you are looking for.

Step 3: Installing Ubuntu

Select the ISO file and then the flash drive and write the image to the drive.

If you are using the Win32 Disk Image Maker, all you have to do is select the disk image and hit write. Next power off your computer and hit the boot key, this is different for different PCs generally it would be F8 or F12.

This would bring up the boot menu, select the flash drive form the list off devices.

The instructions form here it is quite simple, all you have to do is follow the instructions on the screen.

You would get an option to choose to install or just try Ubuntu, hit install, you are also welcome to give Ubuntu a try.

GRUB 2 which comes with Ubuntu will do the job of finding windows or other OS and make an boot option for it.

Step 4: Windows Time

Installing windows is quite same like the Ubuntu, but windows doesn't have Grub and if you are installing windows on a PC with any Linux operating system you are likely to loose access to the first OS, as windows will install its official boot-loader over that of the Linux one.

Here are the details how to install windows along side Ubuntu. First download the ISO file and purchase a license key. Then install WinUSB to create a bootable USB flash drive, here is how you do that the terminal way.

Open the terminal using the keyboard combination Ctrl+Alt+T

Download the winusb package that is compatible with your operating system's architecture:
for Ubuntu 32-bit:

wget  https://launchpad.net/~colingille/+archive/freshl...6.deb

for Ubuntu 64-bit:

wget  https://launchpad.net/~colingille/+archive/freshl...

Install winusb:

sudo dpkg -i winusb_1.0.11+saucy1*

Fix dependencies errors:

sudo apt-get -f install

Step 5: Windows Install

Next open the application and select the ISO file and then select the USB flash drive and hit write.

Then turn off the computer and boot from the flash drive by tapping on either the F8 or F12 key. From here the instillation is quite simple and all the details are present on the screen.

After installation is compete, install GRUB 2 to get access to Linux again.

Step 6: Chrome OS

Chrome OS is an operating system based on the Linux kernel and designed by Google to work with web applications and installed applications.

Chrome OS is a an OS that runs entirely over a chrome browser, it is a very light operating system based on system requirements.

Unfortunately, there is no stable release of chrome OS yet but you can still give it a try you can download the OS by running a google search and follow the same steps as that of Ubuntu.

Then turn off your computer and boot form the flash drive. Chrome OS saves most of the files on Google drive and is available in a wide range of chrome books.