Warning In a clean installation, existing data
is deleted. This data includes personal data and settings. After
you install the operating system, you must also reinstall all
programs. Make sure that you back up personal data before you
perform a clean installation.
Step 1: Start the current version of Windows
Start the version of Windows that you want to upgrade from.
Step 2: Insert the Windows Vista DVD into the DVD
drive
Follow these steps:
a. Insert the Windows Vista DVD into the DVD drive , and then
close the drive tray. b. Wait a moment for the Setup program to
start automatically.
Step 3: Click "Install Now"
When the Setup program starts, the Install
now screen appears. Click Install
now.
If the Setup program does not start automatically, follow these
steps:
a. Click Start, click Run, type Drive:\setup.exe, and then click
OK.
Note Drive is the drive letter of the computer's
DVD drive. b. Click Install now.
Step 4: Click the "Custom (advanced)" option to finish
the installation
When the Which type of installation do you
want? screen appears, click Custom
(advanced). Then, follow the instructions to install
Windows Vista.