|Before you install or change anything on any computer, let's first gather some information.|
On both a working computer, and one that isn't working, open a command prompt window (ie: Start >> Run >> type cmd and hit Enter) and perform the following command in it:
Now post the output of both (appropriately labeled) in a response in here. For information on how to copy/paste the output of a command prompt window click on my name above in my response and read my "how-to" guide titled, "Post the output of ipconfig (version 2)" and follow the steps.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.