Your Outlook.com password is the same as your Microsoft account password.
If you forgot the outlook password, you can reset or change the Microsoft account password.
or you can change it in outlook.
Fro complete application visit office.com/setup
How to Change Password in Outlook.com?
Select your name or profile picture at the top of the page
Select View account.
Select Change password.
(You might be prompted to verify your identity with a security code.)
Select option you want to get the code by mail or mobile number.
When you receive the code, enter it and select Submit.
Now Enter your current password
Select new password.
Retype new password.
for more details, visit the official website of office: www.office.com/setup.