Hello Marvi Cordy,
Could you clarify where you need the email address changed?
- Your personal Microsoft account
- A school account or student portal
- Another website or service
Also, can you still sign in to that account?
The old iCloud address might be either a sign-in address or a security verification method, and those require different steps. The 30-day security period applies only when all Microsoft account security information is being replaced.
If the address is maintained by your school, please contact the school’s IT department or student records office so they can update it directly.