Resetting the BIOS is covered in your owners manual. If you don't have one you can download one from the Asus website.
How many icons are there on the taskbar when the computer finally starts?
Vista comes with Microsoft?s anti-spyware program, ?Windows Defender? installed; and Defender* has a tool built into it called ?Software Explorer? which allows you select whether a program loads during the boot process (start-up). To see the list of what is currently loading, open Defender by clicking Start >Programs, and click on Windows Defender. When Defender opens, click on the ?Tools? gray gear icon. Disable any programs you don't need.