The first step to install Ubuntu is to create a portable operating system. If you are using Windows XP, 7, 8, or 8.1, you can create a Live USB using the Universal USB Installer. This is my favorite method, and it is easy to use. Let's see how to easily create a Live USB for Ubuntu 14.04 in Windows 8.
Three methods for running Linux from a USB flash drive
USB flash drive-Latest Version of USB Installer
Install Ubuntu 14.04 LTS official version on a USB flash drive
Ubuntu 14.04 download, installation, and configuration summary page
Install Ubuntu 14.04 on a hard drive in Windows 7. Permanent update address:
Step 1: Download the Ubuntu ISO Image
Download the ISO image of your preferred Ubuntu version from the Ubuntu website.
Step 2: Download the Universal USB Installer
If you have downloaded the ISO image of Ubuntu 14.04, go to this page to download the latest version of Universal USB Installer.
Part 3: Create live USB
Insert the USB flash drive into your computer and run the Universal USB Installer. Select Ubuntu as the Linux type, browse and select the path of the downloaded ISO image, and then select the USB flash disk. Do not forget to tick the format option.
A warning is displayed. Click Yes.
Wait for a while and wait for the production to complete. You can also run it in the background.
That is to say, it takes several minutes to create a live USB.
Once the live USB is created, you can install Ubuntu 14.04. I hope this tutorial will help you easily create Ubuntu Live USB in Windows.