DriverMax is a tool that allows you to download the latest driver updates for your computer. You need to create an account in the developer website to download the updates. You can also backup the existing drivers to a ZIP file - this is useful if you are planning to format your disk and install a new operating system.
Windows stores all versions of older drivers just in case you want to go back, and sometimes it messes up older versions with more recent ones. The "Export Wizard" will only export the drivers you select by copying the needed files to a folder or a compressed ZIP file.