How do i change my gmail alternate id as i have forgotten my old alternate emailid?

From the Gmail Help Centre:





" 1. Sign in to Gmail.


2. Click Settings at the top of any Gmail page, and open the Accounts tab.


3. Click Google Account settings.


4. Select Change security question along the left side of the page.


5. Enter or change the email address in the Secondary email field, and select Save.


6. Close the Google Account window using your browser's Close button if you don't want to sign out of Gmail just yet. "