I had an issue after upgrading to windows 10 where the wireless control function “fn” +”f2″ would not work and the wireless adaptor was turned off, whilst Dell say their drivers packages have not been tested on windows 10 you’ll find that the windows drivers are more up to date anyway.  BUT the fix for me after trying numerous failed alternatives was the BIOS update which immediately fixed the problem. Resolved Dell 1545 Wi-Fi function not working.


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