Your PC has dozens and in some cases hundreds of drivers functioning at the same time to make your system work properly. Drivers get outdated quickly and windows updates can sometimes leave your generic hardware behind causing your system to lose some of its functionality.
Driver corruption, sudden lost of missing drivers are also common and can take time to find and install. Computer crashes can also cause you to lose all configurations on your PC is your system has to be rebuilt.
Driver scan tools or driver utilities, have access to some of the largest online databases where drivers from nearly all hardware manufacturers are stored. They also connect directly to vendor driver databases from where they automatically search and find the most proper update for your hardware. All this happens very quickly and effectively.
Hardware manufacturers always produce updates and enable new features on their hardware and its important that you get these updates to enjoy the full capabilities of your hardware. However doing this manually every time there's an update for your hardware can be time consuming.
That's why employing a driver scan tool is so practical because most driver scan tools are automated and have the capability to automatically detect updates for the hardware you have installed on your system, giving you the option to do silent installs, so your work is never interrupted.
There are driver scan tools that you can actually download for free, however the limitations of such tools is that they don't usually have access to that many databases and updates are fewer. You definitely get what you pay for with these tools.
Paid tools will give you the advantage because they're guaranteed and supported. They also have access to larger databases and many more of them. If you want to make your life easier and your time more productive with your PC try an automated driver tool and see what it can do for you.