Visit the Intel Support Site and download the .
The hardware identifier (often seen as ACPI\VEN_8086&DEV_0F14 ) specifically identifies the Intel SD Host Controller found in Intel Atom, Celeron, and Pentium processors—most commonly from the "Bay Trail" and "Braswell" families. Acpi 80860f14
This device is a critical bridge between your computer's operating system and its flash storage. Visit the Intel Support Site and download the
Windows 7 32-bit Driver for Intel SD Host Controller - HardForum Acpi 80860f14
Run the installer and restart your computer. In many cases, this will automatically resolve the "Unknown Device". 2. Install the Intel Serial IO Driver
It manages the data transfer for the built-in eMMC drive (where Windows is often installed on budget laptops and tablets) and any inserted SD cards.