In order to change your Microsoft Account password
1. Go to account.microsoft.com and if you’re not already signed in, sign in with the username and current password for the account you want to update.
2. From the navigation header, select Security and because you’re accessing sensitive info, you’ll need to enter the password for this account again.
3. From the Password security tile, select Change my password.
4.On the Change your password page, enter your current password and then enter your new password.
5. Select Save.