Drivers are software interfaces that allow other software to communicate with a component (such as a graphics card or audio cards).
Usually operating systems (such as Windows) will go online to a repository to fetch drivers for components that it finds in the system. In cases where the operating system doesn’t find the driver, it would be up to the user to find the right drivers. If you know exactly which component you need the drivers for, you can look up the model number on the manufacturers website and download the latest driver there.
If we don’t know which component we have on hand, we can search up the vendor and device ID which is usually an alphanumeric combination of four characters. We can then find out what kind of devices are installed by looking it up in the PCI database (a crowdsourced database).
More often than not, you will encounter issues with your display driver every time you change or update the drivers. Guru3D has provided a tool that can completely remove the display driver which will allow users to easily install or update their drivers without any weird quirks. If you’re installing a new display card on an existing machine it is highly recommended that you use this tool.