* 1 Turn on your computer and insert your Windows 7 DVD into your system's DVD-ROM unit. If the Windows 7 setup does not launch, restart your computer and access the BIOS configuration menu. During startup, BIOS instructions are listed at the bottom of the screen. Change the system's boot sequence to "CD/DVD-ROM" and press "F10" to save all changes. * 2 Assign your default language, time and keyboard/input, respectively. Click "Next" to proceed with the Windows 7 installation. * 3 Click "Install Now" and read the program's license terms. Check "I Accept the License Terms," and click "Next" to continue. * 4 Select the "Custom" option, followed by the external hard drive on which you wish to install Windows 7. If you possess more than one storage unit, ensure that you select the proper drive; the most appropriate method is to note the total disk size as shown. * 5 Select "Drive Options (Advanced)" as an optional step if you wish to erase the external hard disk's contents. For example, if you wish to store only the Windows 7 OS on the drive, select "Format" from the subsequent menu. Otherwise, leave all options intact and click "Next." * 6 Allow the installation to copy all necessary files. Your computer will restart automatically several times during this process. Do not press any key. * 7 Input the default user name, followed by a computer name. The user name will serve as the main administrative profile. The computer name can be anything you wish. * 8 Click "Next" and assign a password to the user name chosen, followed by a password hint. The password hint is reserved for future reference in the event you forget the chosen password. Click "Next" to continue with the installation. * 9 Insert your Windows 7 product key, found on the front page of the software's user's manual. Otherwise, click "Next" to use Windows on trial mode for 30 days. You may activate Windows any time before the trial period expires. Click "Next" to continue." * 10 Select the "Recommended Settings" option, which automatically downloads and installs important updates as they become available. Click "Next," and adjust the time and date pertaining to your geographical area. Click "Next" to proceed. * 11 Select whether your computer is part of a "Home Network," a "Work Network" or "Public Network." Use "Public Network" if you are using your system in a public area. Click "Next" and allow Windows 7 to finalize all installation settings. Once finished, your computer will restart and prompt you for the user name and password previously chosen.