The steps below are how to change a known password. If you need to reset your password because you forgot it, see reset your Microsoft account password .
Change your password
Go to account.microsoft.com and if you are not already logged in, log in with the current username and password for the account you want to update.
From the navigation header, select Security and since you are accessing sensitive information, you will need to enter the password for this account again.
From the Password security tile, select Change my password .
On the Change your password page, enter your current password, and then enter your new password.
For added security, select the Optional checkbox that asks you to update your password every 72 days.
Select Save.
If you can't change your password
If you can't change your password this way, see reset your Microsoft account password .