It looks like you got it figured out, but just in case I'm wrong ...
The function (Fn) key is in the lower left corner of the keyboard on Dell notebooks, right between the CTRL and Windows (Flag) key. Text on the keyboard in blue (the same color as the text on the Fn key) shows what that particular key does if you press it while holding down Fn (e.g., Fn+F8 toggles between internal, external and dual display for video).
If its disabled in the BIOS, Windows won't see it. If it is enabled it should show up in Device Manager. F2 at the Dell splash screen to enter the BIOS.
In Device Manager you can disable the hardware. Windows will still see it, but will ignore it. Right click the Device Manager entry to enable or disable it (Control Panel > System > Hardware > Device Manager > then find the device).
Fn+F2 only controls the radio in the wireless card, turning it on or off. Depending on your system you might have a WiFi catcher switch on the side of the computer that can also be used to toggle the radio. For some of those systems the catcher switch is used instead of Fn+F2.
In the Dell Wireless Utility or Intel Pro Set (depending on which card you have installed) there is also an option to toggle the radio and/or enable the wireless card.
There is a physical switch located on the side of the computer. On my Insipron 1525, it is a black slide switch located on the right side near the front edge. There is a miniscule radio antenna icon next to the switch. It is VERY easy to overlook. Use this switch if Fn F2 does not work. It took me quite a while to locate the switch. Good luck to all of you.
Back to the Inspiron E1705, can you turn off WiFi independently from Bluetooth?
I plug mine directly into my router so I have no need for WiFi but want to use bluetooth.
Fn + F2 seems to turn off both.
On some models, you can turn off the bluetooth in the Windows Mobility Center or device manager.
Original poster, If you have solved your problem, can you please mark the correct thread(s) with your solution. Thanks
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