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If you have a netbook or some other computer that doesn't come with a CD drive, don't worry: You can install Ubuntu using a USB flash drive. Booting from a USB drive can be a little more involved than simply booting from a CD or using Wubi, but once the installer is up and running, the installation process is identical. I'm going to assume that you're using Windows for the rest of this appendix, but it's possible to create a USB install disk with other operating systems too; see https://help.ubuntu.com/community/Installation/FromUSBStick/ for instructions.