Password Self Service allows you to reset NetID your password without having to call the HelpDesk, but you must set it up in advance. Be sure to take a few minutes to do it now!
Go to the O365 Login Page:
Put in your Downstate email address. You'll be redirected to the campus login page (see below).
Click on the link Sign Up for Password Self Service (see red arrow).
Follow the on-screen instruction to add your mobile phone number and/or alternative email address as the second factor authentication method(s).
In case the password needs to be reset, click the Forgot Password link on the same page.
After you verify your identity using the phone or email address, you will be able to reset the password without being asked for the original password.