At least once in your career, you would have probably experienced the unpleasantness of exiting a presentation without saving it. Now with PowerPoint, you can even recover unsaved presentations.

1. Open PowerPoint > by default it opens Document Recovery on the left
2. Select the file you want to recover and hit save (Ctrl+S)

Alternatively,

1. Go to File Menu and select Open
2. Go to the right panel and below the scroll at the bottom of recent files > click on Recover Unsaved Presentations
3. Select the file you want to recover and hit save (Ctrl+S)

Watch this video and know how recent unsaved presentations can be brought back from the dead from here.