When you are working on a PowerPoint presentation, the AutoSave option, if enabled, automatically saves your file at the specified time increments. This way you get to replace your current file with an earlier version. This can be very useful if you want to go back to the state of your slides an hour ago, or even two hours ago without having to use any Undo option.
To learn more, choose your version of PowerPoint. If we do not have a tutorial for your version of PowerPoint, explore the version closest to the one you use.
Microsoft Windows
Restoring Earlier Versions in PowerPoint 2010
Tutorial Code: 16 03 04
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