Adding to my new ongoing series of daily how-tos I write for clients is this one about registering the Free Avast Antivirus I now recommend. Occasionally the registration servers are not working when I install the program for a client, so I created these instructions for her to follow when the servers come back online. This should also help those folks who need to re-register Avast after the first year.
Keep in mind that for newer Windows Vista and 7 computers, I recommend Microsoft Security Essentials. So my Avast recommendation is for Windows XP only.