(Before installing the xp system, make a backup of the original vista system, drivers and your own data. Use thinkpad's built-in recovery production program to carve a recovery disk according to the prompts, about 13 cds. I myself feel that although the basic version of Vista that comes with the books is genuine, there is no need to waste so many CDs to keep. It is still possible to keep the original driver, in C<imgsrc="static/image/smiley/default/tongue.gif"smilieid="7"border="0"alt=""/>rogramFilesdrivers or drivers in the C root directory (Can't remember the detailed path.)