I have an old work computer at home using Windows XP Professional. The broadband was made secure and it wouldn't connect to the network anymore.
I was fiddling around and I went into a network icon on the control panel. I ran a wizard in the hope that it would automatically produce the network key the wireless set up was asking for.
I chose "Home computer not part of a network" instead of "Business networked computer" and restarted as instructed. Now the log on does not work.
How can I switch it back in the set up so that I can log on again?