Messenger Help & How-to
Go to your Windows Live account and sign in with your Windows Live ID.
Under Account information, click Change next to Password.
Enter your old password, enter a new password, and then confirm your new password. Use the password strength meter to make sure that your new password is strong, so that it’s harder for other people to guess.
Consider selecting the checkbox to make your password expire every 72 days. Changing your password frequently helps protect your personal information.
Click Save.
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