I am having similar problems to Edwin. I have W8.1_64bit. Consequently, while on the phone with Dell Tech Support, the Tech uninstalled the PROSet Wireless Bluetooth driver (the Intel posted driver is newer than the Dell driver on support.dell.com), and now I have a dll Error when my machine boots, and I have to manually connect my wifi connection each time I boot or restart.
In the Device Manager, I manually updated my Intel network and chipset drivers, but I still do not have the Intel Bluetooth driver, nor can I either uninstall the PROSet Wireless (v 16.1.5) or install PROSet v 16.7.
I was able to download the 16.7 executable with drivers only, and installed without any error messages.
Does anyone have a link to the PROSet v 16.7 zip file so I can try to manually copy the wifi.msi and .wifi.cab files as Grinddude posted?
I've spent all day with Dell Tech and (surprise!) they are stumped.