How do I fix problems registering a Yahoo ID?
Having trouble signing up for the Yahoo ID you want? Sometimes a problem can prevent you from filling out the registration page, or the ID you want is already used by someone else. Here are some solutions.
If someone else has an ID you're trying to create, be creative; try adding a number, underline, or punctuation. For example, you want "myname@yahoo.com" but it's already taken. You could use:
myname1@yahoo.com
my_name@yahoo.com
my.name@yahoo.com