i use a dell inspiron 5520. yellow exclamation mark under Intel WiUsb driver. tried updating the intel centrino N-2230.. but still hazard mark persists. i downloaded and installed both Wireless_15.6.1_De64 and Wireless_15.6.1_e64 files.. i cannot connect through WiFi.. please help..

I bought a Dell Inspiron with the following specs and scrolling does not work. This is immensely frustrating. I have used macs for years and don't know the ins and outs of windows. Any help is greatly appreciated. Thank you, Inspiron 17R - 5720

I have tried to connect via the serial interface but I am unable to get into the base configuration. It does not receive a break command to bypass the start-up, I have tried a direct serial port connection and also a USB Serial connection with multiple applications;