Semper Driver Backup does exactly what its name implies: saves and restores all system drivers. Why is this important? Because system manufacturers rarely supply drivers on disc anymore. That means if you ever need to wipe your hard drive and reinstall Windows, you might find yourself without a critical driver.
In fact, I've had it happen where I did a system wipe/reinstall, only to discover I didn't have the driver I needed for the machine's Wi-Fi adapter--meaning I couldn't connect to the Internet to download the other drivers I needed. (Ultimately, I had to hunt down an Ethernet cable and move the machine within range of my router--big hassle!)
Semper Driver Backup finds every single driver on your PC and copies it to a folder, which you can then offload to, say, an external hard drive, a flash drive, or even a service like Dropbox (though I definitely think you're better off keeping the drivers available locally; see my above example if you can't understand why).
