I'm trying to help a friend over the phone who cannot get on the internet. He was on the phone with Tech Microsoft who I think made matters worse. My friend is running XP Home, but tech had him install on a slave drive XP Pro Friend I call bob, cannot access his main hard drive at all, but can see the files via windows explorer but really cannot access the files. On the slave drive under device manger Yellow Question Mark are under Ethernet, Bus controller, video controller and audio. When working with Bob and trying to update driver we kept getting a code 28. Bob doesn't have a disk with drivers. What to do?