I have a home network setup with two laptops and a desktop working through a router. All the internet connections run great except for one hang up on my desktop. I have no problems accessing my hotmail or any programs that require user name and password online. However when I attempt to log in on my desktop, it tells me the computer is not recognized. Windows update will not update my system and Norton doesnt recognize my computer. I can use the internet, I cannot access anything user specific or secured websites online. I barely use this system, and have tried restoring several times.