Creating bootable ubuntu linux in usb device

1.Download the Ubuntu distro(iso file) from the site or if u have already,skip to step 2

2. Insert a USB stick with at least 2GB of free space
3. Download the Universal USB Installer
4. Click 'Run' when prompted
5.If the security dialog appears, confirm by clicking 'Run'
6.Read the licence agreement and choose 'I Agree' to continue
7.Select Ubuntu Desktop Edition from the dropdown list

8.Click 'Browse' and open the downloaded ISO file
9. Choose the USB drive and click 'Create'