Driver installation is the process of adding a device driver so Windows can communicate with hardware. A driver gives the operating system the instructions it needs to recognize a device, expose its features, and manage it through Plug and Play or other setup paths. Many drivers are installed from vendor packages and may include services, configuration files, or helper components.
In cyber security, driver installation matters because it often sits inside a trusted system workflow. Drivers can run with high privileges, interact directly with hardware, and influence boot, networking, storage, or security software. Attackers may try to abuse that trust by supplying malicious or tampered driver packages, steering installation through a vulnerable path, or replacing legitimate components. Defenders reduce risk by enforcing code signing, limiting who can install drivers, reviewing new device activity, and monitoring for unexpected driver changes or privilege escalation.