An online driver update is a program which runs through the web in order to update the drivers on your computer. The program doesn’t require you to download anything, so if you run a slow connection, or if you don’t have much hard drive space, such as on a netbook, this can be the best way to make sure all the drivers are updated on your computer. By performing these updates regularly, you don’t have to worry about anything related to driver problems, since you’ll have the latest drivers installed and working on your system and working well for you to use properly.