A
Fujitsu Stylistic 5031D is not a network adapter, it's a
TABLET PC. It's simply amazing that you do not know how to create a proper request/thread for a driver or how to describe your hardware. This machine comes from the manufacturer with 2 different network devices, one LAN (Broadcom chip) and one WLAN (Atheros chip).
Try visiting the manufacturers website for drivers. You cannot use generic drivers on a tablet pc... you must use specific drivers from the laptop maker.
http://support.fujitsupc.com/CS/Portal/supportsearch.do
Fujitsu website design prevents direct links to their drivers. You have to click your way to the driver.
Lan driver is: ST503x,T4020x_05SUM_LAN_BROADCOM_GbE_V8.22.1.0_XPT PC.EXE (1.47 MB.)
WLan driver is: WLAN_ATHEROS_V7.7.0.406_XP_FPC46-1634-01.EXE (31.1 MB.)