The problem with laptops is all the parts are manufacturer specific, you can format your HD as a "clean" install. You may have to visit Dell's web site for the driver's though. I build my own systems and I buy the upgrade OS's then do a "clean" install (format and create 1 partition). Hopefully, Windows 7 has basic drivers that are compatible with your hardware, then you can connect to internet and go to Dell and download anything you may need.
Hi, Fred, welcome to Windows 7 forums! Windows does download some drivers, but you cannot rely upon Windows Update alone. You'll have to visit the Dell site, too. Also, in some cases, you may have to contact the part supplier directly for the proper drivers (for example, ATI). But after Windows Update and a visit to Dell's site, if you are still having minor problems, a free visit to Driver Max may work out perfectly for you. It did for me. However, the free version allows you only two drivers per day. The scan is free, and that will give you an idea of what you need. If you only need five or six drivers, and the computer is still usable, and have patience, the free is OK. However, if you have a lot of outdated drivers, the paid may be the way to go. It's up to you, and there may be suggestions from other members, too. Hope everything works out for you, Fred.