There are various reasons why you would want to encrypt your PowerPoint file with a password. There are two password levels you can implement within a PowerPoint file: a password to open and a password to edit. However, even if you add a password to your presentation, there may come a time when you want to remove it. Or, you may want to change the password. PowerPoint 2010 provides a very simple way to add a password. However, there is no obvious or intuitive command to remove or change the password protection.
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