Find the cd's that came with the laptop and see if there's anyone labeled like "Restore cd" or "Drivers and utilities". It should be somewhere on those cd's.
The alternative: visit the download section of the manufacturers (like Dell, Toshiba, HP) website and find the driver. Or contact their tech support.
I loaded Microsoft xp with sp2 onto my laptop and now I get a error message that reads, "Device installer error--Windows could not load the installer for battery. Contact hardware vendor". Can anyone tell me how to get the battery drivers? Laptop does not charge properly.