Install Ubuntu in external Hard drive from a Windows system

Advantage: There is no difference in performance if Ubuntu is installed in external hard drive or internal. It is always preferred to install Ubuntu in external hard drive if you have dual boot system as you do not have to allocate space in internal hard drive.

Requirements:

1) A pendrive / USB Flash Drive

2) An external HDD

Step 1: Download Ubuntu in .iso file format. You can download the latest version from https://www.ubuntu.com/download/desktop.

Or you can download older reliable version Ubuntu 16.04.5 LTS as the newer version may not be compatible with many software from http://releases.ubuntu.com/16.04/

Click on the link 64-bit PC (AMD64) desktop image

Step 2: make USB bootable. From the site https://rufus.akeo.ie/ download Rufus.

No need to install Rufus. Insert your pendrive and double click the downloaded Rufus recognizes the USB pendrive. Under “Format Options” click on “FreeDOS” and select “ISO image”. Select your Ubuntu iso image.

Step 3: Install Ubuntu in external HDD:

Insert external Hard drive, and restart your computer. As the computer shuts down press specific keys (like F2/ del/ esc/ F8/ F 9/F10 /F12) to go to the BIOS / UEFI by clicking the specific key on the keyboard. In the Boot screen select the USB to tell the computer to boot from the USB and not Windows.

Next it will ask installation type Ubuntu. Your options may be slight different. In my harddrive Ubuntu was already there. I am reinstalling ubuntu. Select something else.