Go to Dell’s support site and search for "Latitude E6400." Under the "Drivers & Downloads" tab, filter by "Application." Look for Dell Quickset . The last stable version for this model is usually version 9.1.13 or similar (released around 2010).

If you own a , you own a piece of laptop history. Built like a tank, sporting a gorgeous 16:10 LED display (if you got the upgraded model), and featuring the legendary Dell trackpoint nub, this 2008-era workhorse refuses to die.

The solution isn’t a driver hunt for six different pieces of hardware. It’s one, tiny, misunderstood utility: What is Dell Quickset? Dell Quickset is a proprietary system utility that acts as the middleman between your keyboard and your BIOS. While Windows will automatically install generic drivers for your sound card and wireless card, it won’t automatically install the logic required to tell the OS, "Hey, the user just pressed the 'Radio On/Off' button."