Wireless connection does not work anymore
My Dell Latitude D620 laptop can't seem to connect to my wireless wifi anymore. It keeps trying to acquire the network address but it can't seem to actually connect anymore. When I turned it on yesterday, none of the program icons would appear on the screen and after several tries, they eventually did, but it would not connect to the wireless. (I am using my iPod Touch to write this.)
When I Googled for a solution, I found an article on the Microsoft Knowledge Base (871122), and followed the instructions on how to restart the wireless, because, at first, it wasn't even trying to connect. Once I did what it said, it tried to acquire the network address and that is about as far as I can get it to go. FYI, I am running Windows XP, Service Pack 3.
I deleted some seldom used programs because my tiny 26G hard drive is nearly full and it keeps complaining of low disc space. Maybe I accidentally deleted something necessary to make the computer run as it should, but I only deleted seldom or never used programs. And because I have almost no disc space left, I cannot run any Windows updates or update my antivirus program (AVG Free) either. I bought a new 500G hard drive but I do not know how to transfer the contents of my 26G hard drive on to that, including Windows XP (for which support ends next April, I know, and I'd like to upgrade my laptop to be Windows 7 compatible and I did run a program to check my system for compatibility and aside from a few issues, it said that it would work.)
So can anyone please help me to resolve this knotty issue? Or is this best fixed by a professional? Thanks for any and all answers!