I accidentally removed the APLS touchpad driver when I was removing a stupid toolbar I didn't ask for. I don't know what it is, or whether it will have any impact on my DELL PC. Any help would be great.
To download the drivers, visit the official website and enter your service tag number. You can find it on the sticker attached to your device. You will then be taken to the download list. You can find the driver under the Input category.