May I know what is the browser we use ? firefox or Internet Explorer?
What is the computer's operating system ?
My operating system is Windows Vista and I use Internet Explorer...So if you have some advices to give to me...It will be appreciated!
Try resetting your internet explorer (open IE, click tools - click internet options - advanced tab - click Reset)
And then try to activate your programs.
Do report back if you still have issues registering mcafee