Realtek wireless LAN driver is the software package for Realtek USB WiFi devices. Realtek USB wireless LAN utility is a WiFi adapter tool designed by Realtek. MiniTool Power Data Recovery, MiniTool Partition Wizard, etc. For Windows users, you can find some useful utilities from MiniTool Software, e.g. In this post, you will learn what Realtek USB wireless LAN utility is, how to download or update Realtek wireless LAN driver, and some troubleshooting tips for Realtek WiFi adapter driver issues.