I'm having a bit of a problem with a new Dell Inspiron 14 3421, I have the model that comes with Ubuntu as a factory OS. now, I installed a fresh copy of windows 7 pro instead of ubuntu, so far so good. I installed all of the drivers I got from Dell's support website, these are the drivers recommended to me by the site using the service tag. all works perfectly good all but the wifi driver, it either fails to install or it it completes the installation but nothing changes, I have tried all 3 drivers that the website offers, plus one of the older version drivers, nothing works, on my devise manager I do get the "network" with an exclamation so the card is there and is recognized by the computer. Also when it had the Ubuntu OS in there the wifi worked. I also noticed that the drivers for the WiFi are in my experience unusually large ranging from about 158MB to about 350MB. Also the driver is a wifi + bluetooth file, and I always have to skip the Bluetooth installation because it will always fail on account of bluetooth not being turned on (IT IS!) it asks me to activate the bluetooth with the network adapter switch, the computer doesn't have a switch all it has is the function key to turn the wifi on and off. and the Bluetooth is working without having installed the drivers for it. so bluetooth works fine, it turns on and off with the function keys no problem. but the wifi doesn't take any driver.
any help will be fantastic.