How do I change my e-mail address to my account

[stormryder]

I have had a registered copy of the home edition for some time and just recently been forced to change my e-mail address because of spamers inserting my address as their return address.  Now I need to get the registration key that matches the old address to link up with the new address.  Can someone tell me how to do it?   

[DavidR]

You shouldn't have to if you have already inserted the key into avast.

When you need to re-register, just input your new email address, or you can do that now and you should be sent a new registration key, valid for 14 months.

Complete the avast! 4 Home Registration form and you will receive an email from register @ avast.com (without the spaces) with your registration key.