The Olivetti IBM X24 Windows driver refers to the software needed to enable a Windows operating system to properly communicate with the Olivetti IBM X24, which is a laptop or desktop system that was sold as part of a collaboration between Olivetti and IBM in the late 1990s and early 2000s.
However, you may be referring to specific drivers for the hardware components of this system, such as video, audio, network adapters, or other integrated devices, since IBM X24 is a well-known model from IBM's ThinkPad series that was sometimes branded for Olivetti in certain markets.