It seems to me that computer manufactures don’t often provide drivers for newer OS’s, unless the computer is new (as CoolColors said above). However, Manufactures of individual components (video cards, audio cards, etc.) will probably provide their own drivers. That said, it’s probably a good idea to take careful note of what hardware devices you have, and where you can get newer drivers, before you install a new OS. Once you old OS is gone, figuring out what kind of hardware you have can be very difficult (at least until after you have the right drivers installed).