We assume it is true you have downloaded all key drivers to the folder after installing Snaildriver 2 Lite. If not, please do it first, this post will tell you what the key drivers backup is?
What situation we will use the feature for?
Snaildriver 2 Lite will install the suitable driver automatically when your computer has no any driver for the network device.
How does it work?
Snaildriver 2 Lite will load the driver-backup list from the backup.db if your computer has no driver for the network device and then, installing the suitable driver automatically.(Never delete the backup folder)