Dell :: 7720 SE Unknown Device / Might Be A Bluetooth Driver

Jun 16, 2013

I have a Dell 7720 148285 SE notebook. I use Windows 7 x64 Professional Edition. I downloaded and installed all the latest drivers from Dell Support site. Unfortunatelly I have got a problem.I see an unknown USB device in my Device Manager. (I have not connected any USB device to my computer except one mouse, but this is recognised correctly.)url... recognised that I do not see anywhere my Bluetooth adapter. So I think might be that is the problem.I installed the following drivers:[code[

Of course I restarted the computer every time I installed a driver but the 'Unknown device' still remained url...noticed that if I turned of my wireless connection with the keyboard buttons: Fn + F2, then this Unknown device have been disappear. After I re-enable the wireless connection with Fn+F2 buttons, then I get this error message, and my 'Unknown device' is already show up.How should I install the Bluetooth driver correctly? And which driver should I use for that?

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Install 'Setup.exe' file in 'compatibility Mode'

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- Click on ‘Windows 7’
- Click on ‘Start the Program’
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- Once the installation completes, click on ‘Next

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