DCH

DCH stands for Declarative, Componentized, Hardware Support App, and it describes the driver packaging model Microsoft introduced with Windows 10 version 1803. Instead of bundling every feature into one installer, a DCH driver separates the core INF-based driver from optional software components delivered through the Microsoft Store. You will typically see “DCH” in the filename or release notes of modern Intel, NVIDIA, and AMD driver packages. Because DCH drivers are smaller and update independently, installing a legacy non-DCH driver over a DCH one—or vice versa—can leave conflicting files behind; cleaning out the old display package before switching between the two package types avoids that conflict.