I have a hp elitebook 2730 running windows 10 pro. For some reason the wifi won't turn on. I can move the switch on the side all i want and it won't turn on. I work when i put in my closet 11 months ago. The laptop battery was dead when i took it out of my closet. The Ethernet port on the back works. Everything else works on it. I just can't figure out why wifi won't work. I took the card out and clean the pins and put it back in. In the bios it show the card and it is the wifi card that came with the computer. In windows it show intel 5100 wifi adapter. I think i tried everything i can think of. The only thing i haven't done it reinstalled windows 10. In less the wifi card went bad from sitting. Well if anybody has a idea to get it to work let me know. Thanks for the help.