The Change Password function in the Tools menu or Tools tab of the ribbon allows you to change your password. You must enter the old password, then enter the new password twice (the second time to confirm that you typed it correctly). If you leave the new password blank, you are asked to confirm that you want to do that.

Click the "show password" button toggle between displaying the password in plain text or as "*****" (the password is always stored encrypted regardless of the setting of this button).