Utility and Driver Auto Installation Program. Install Shield v 1.00.0187. Windows 7 v 1086.48.0809.2011. XP / Vista v 1084.53.0809.2011.
Then right-click on this driver entry: Realtek <Model> Wireless LAN 802.11n PCI-E NIC and then click on Update Driver. This post will show you in detail how to rollback or update device drivers ...