The Intel Celeron/Pentium Processor SDIO - 5AD0 driver likely relates to a specific system or chipset driver for handling SDIO (Secure Digital Input Output) functionality on Intel processors. To install it, you would generally visit the Intel website, search for the driver by your processor model or motherboard, and download the appropriate version for your version of Windows. After downloading, run the installer and follow the on-screen instructions to complete the installation. Is your system showing any specific errors related to this driver?