Hi SengKuang, Windows 8.1 drivers are available in the supports site. Please click on the link below and update the appropriate drivers for your computer. [URL] Revert for further queries.
Hi, I have just upgraded to Win 8.1 (Pro) OS. I have downloaded and installed new drivers for Win 8 (Pro) last year. Are the drivers for Win 8 suitable for Win 8.1 PC? May I know if Dell going to come up with new drivers for Win 8.1? Thanks 
Dell Inspiron 660S - Any new drivers for Win 8.1 OS