Gymbow,
It is important that you always look for updates provided by the computer manufacturer and Dell* is the one that can provide a more accurate answer since they do the customizations. However, you can try the latest drivers (18.11.0) we have recently made available for download in our download center. Click here: Intel® PROSet/Wireless Software for Windows 8.1*
Which file should you download?
If you have Windows 8.1 32-bit and 8.1 64-bit:
DRIVERS ONLY: Wireless_18.11.0_De132.exe and Wireless_18.11.0_De164.exe
Intel PROSet/Wireless WiFi Software (includes Drivers): Wireless_18.11.0_e132.exe and Wireless_18.11.0_e164.exe