Step 2 – Burn the ISO image .

Step 3 - Insert or leave the CD in your CD/DVD-ROM device and reboot your computer. Hit enter when the boot screen appears and wait for it to load into memory.

Step 4 – When the desktop is fully loaded, double click the Install icon and follow the installer steps:

Select your language

This is the first step of the installer, where you must select your native language (default is English). This language will be used for the installer and it will also be the default language for your Ubuntu Linux (when the installation is over). Click the Forward button after you have selected your language.

The second screen will feature a map of the Earth with little red dots, so you can select your city and country. Upon the current selection of your location, the time for the final system will adjust accordingly. You can also select your current location from the drop down list situated at the bottom of the window (recommended). Click the Forward button after you have selected your location.

Select  your keyboard layout
On the third screen, you will be asked to select the keyboard layout that suits you best (default is U.S. English). You can also test your keyboard on the little text input field situated at the bottom of the window. Click the Forward button when you have finished with the keyboard configuration.

Hard disk partitioning

The hard disk partitioning is an easy task, Please select the option very careful when ever you have more than one operating system.  You have three options:

1. If you want to keep your existing operating system, select the first option: “Guided – resize the partition and use the freed space”.
2. If you want to delete your existing operating system, select the second option: “Guided – use entire disk”.
3. Manual is the third choice at this point and I strongly suggest you to use it ONLY if you are an expert on Linux partitioning.

Once you’ve reached a decision, click the Forward button.

Migrate Docs From Existing OS

This is the best part of the installer, as it will allow you to choose your existing Firefox bookmarks, wallpapers, favourites, mail, Messenger contacts. If you don’t have a Windows or other Ubuntu installation on your hard disk, then you will not see this screen so just click the Forward button to continue with the installation.

Who are you?

Here you must do exactly what the title of this step tells you to do. You must fill in some fields with your real name, the name you want to use to log in on your Ubuntu OS and the name of the computer (automatically generated). Once you have finished with this step, click the Forward button again (for the last time).

Finally Ready To Install

If you have successfully arrived at this point, then you are definitely ready for your new Ubuntu operating system. So, what are you waiting for? Click the Install button NOW!

Then we have to wait for Ubuntu 7.10 (Gusty Gibbon) operating system installation step

Step 5 – After approximately 8 minutes, a pop-up window will appear with two options:

1. Continue using the live CD
2. Restart now

Then Click  “Restart now” button, For access the Ubuntu operatig System. Enjoy and Feel the Difference.

Click here For Trouble Shooting the OS Installation Issue