You can learn from this article how to change the email you use to sign in to your GoToMyPC account.

1. Sign in at https://www.GoToMyPC.com/members/login.tmpl.
2. Select My Account in the left toolbar.
3. Under User Information, enter your new email address and your current password where required.
4. Select Save Changes.

   Result: You'll receive instructions in your email inbox about the new email address you are going to use.

5. Open the email and click the link to finish changing the account email address.