After a quick search on Instructables I could not find a good guide on the installation of my favorite distribution of Linux: Ubuntu. I quickly added an Oracle Virtual Machine and began the installation screen shotting the whole process. Skip to the end if you've already installed Ubuntu and would like to customize the window buttons or install Chromium-browser.
Step 1: Burn Image to Disc
Visit Ubuntu.com and click the "Download Ubuntu" link. From there select the version of Ubuntu you would like (32 bit or 64 bit). If you do not know which one to choose, select the 32 bit version to be safe. Further down on the page is the second step which allows you to select your operating system and whether you would like to install from a USB drive or a CD. I would recommend a CD at this point as it is easier and works with more systems.
Step 2: Startup Selection Screen
Once the CD has been burned, leave it in your drive and reboot the computer. You should see Ubuntu screens flashing up followed by the following screen asking whether you would like to try or install Ubuntu. If you would like to try out Ubuntu then simply choose that option and when you reboot there should be no change to your system, otherwise click install.
If you do now see these screens please consult your computer's user manual (usually found online) for instructions on changing the boot order. Alternatively you can watch as your computer boots for messages about entering setup. Generally these keys are something like F2, F10, or DEL. These messages should come up within the first few seconds of booting. Search around in this setup utility for the boot order. Exit with saving once the CD-ROM is set to boot first.
Step 3: Time Zone
This step is fairly simple. Please simply select either on the map or from the drop down lists, the time zone that you currently reside in. Then click forward when this information is correct.