What is the term for unsolicited Email​

The word "Spam" as applied to Email means "Unsolicited Bulk Email". Unsolicited means that the Recipient has not granted verifiable permission for the message to be sent.

i would say 3 because windows is the best but vista doesnt do updates anymore

you can not change you age soon as you signed up. the only way is too delete your account and use another account to sign up and put your correct age.