What Are Drivers?
A driver is software that enables your operating system to communicate with hardware. This guide explains driver types, how they function, and how to resolve common issues.
Core Drivers — Reference Library
Foundation Layer · 04 Drivers
The four foundational drivers that every modern computer relies on. Each one governs a critical conversation between your operating system and the silicon, the screen, the speakers, or the network. Understanding what they do — and recognising when they go wrong — is the starting point for almost every system issue.
01
Motherboard & CPU
Chipset Driver
The chipset driver is the conductor of your motherboard. It coordinates how the CPU, memory, storage controllers, USB ports, and PCIe lanes communicate with one another and with the operating system. Without it, your system can boot — but it will not perform.
What it does
- Enables CPU power management and thermal control
- Activates storage and expansion controller features
- Coordinates memory channels and bus speeds
- Unlocks integrated USB, audio, and LAN controllers
Common signs of trouble
- USB ports intermittently dropping devices
- Higher-than-expected idle CPU temperatures
- Storage drives appearing in the wrong controller mode
02
Visual Rendering
Graphics Driver
The graphics driver translates every pixel your operating system wants to display into instructions the GPU can execute. It governs window composition, video playback, hardware acceleration, multi-monitor layouts, and the heavy 3D workloads behind games and creative software.
What it does
- Renders the desktop, applications, and video
- Provides DirectX, OpenGL, Vulkan, and Metal support
- Manages display resolution, refresh rate, and HDR
- Enables hardware video decoding and encoding
Common signs of trouble
- Black screens, flickering, or screen tearing
- Wrong resolution or refresh rate options
- Becomes unresponsive or stutters in games and 3D applications
- External display not detected on connection
03
Sound Input & Output
Audio Driver
The audio driver is the bridge between every sound your operating system produces and the speakers, headphones, or microphones plugged into your system. It handles routing, format conversion, volume mixing, and the subtle effects that make audio sound natural.
What it does
- Routes sound between apps and physical devices
- Converts digital audio formats and sample rates
- Manages microphone input, gain, and noise reduction
- Detects connection of headphones, display audio, and USB audio
Common signs of trouble
- No sound output despite the device being detected
- Crackling, popping, or distorted playback
- Microphone not recognised by calling apps
- Audio cuts out when switching between devices
04
Wired & Wireless
Network Driver
The network driver is the gateway between your machine and the rest of the world. It powers wired Ethernet, Wi-Fi radios, and the protocols that move every webpage, message, and download in or out of your computer. When it falters, everything online stops.
What it does
- Operates Ethernet and Wi-Fi network adapters
- Negotiates link speed, duplex, and wireless standards
- Handles TCP/IP, DNS, and DHCP at the device level
- Enables features such as Wake-on-LAN and Wi-Fi roaming
Common signs of trouble
- No internet despite a connected network
- Wi-Fi drops repeatedly or refuses to reconnect
- Very slow throughput on a known-good connection
- Adapter missing entirely from network settings
Types of Drivers
Drivers fall into four broad families, each serving a distinct role in keeping your computer fluent in the language of its hardware.
Essential Drivers
The foundation of every modern system — the drivers that make your computer's core hardware speak the same language as the operating system, so processing, visuals, sound, and connectivity simply work.
- Chipset Driver
- Graphics Driver
- Audio Driver
- Network Driver
Hardware-Specific Drivers
Built around the components inside your machine — drivers that govern how data moves between storage, ports, wireless modules, and the devices you touch and type on every day.
- Storage Controller
- USB Driver
- Bluetooth Driver
- Input Drivers
Peripheral Drivers
The translators for everything you plug in or pair to your system — from input controllers to live video — handling data exchange, signal quality, and feature negotiation behind the scenes.
Advanced System Drivers
The deeper layer that runs before — and beneath — the operating system itself, governing initialisation, identity, integrity, and how the picture you see on screen is finally rendered.
- Boot Firmware
- Security Drivers
- Monitor Driver
Driver Category Comparison
A quick-reference overview of the four driver families, the role each one plays, the components it covers, and the platforms it typically supports.
Common Issues Reference
Common driver issues, their root causes, and the recommended fix for each.