In case of Recovering PowerPoint Not Saved, you have to hope that you have a folder called AutoRecover. PowerPoint tends to leave temporary copies in the background and continue to work on them, although you may never have tapped the Save button. These drafts can be automatically shown to you when you reopen the app after a crash. Alternatively, go to the unsaved presentations folder, and PowerPoint has some autosaved backups there, which, after a recovery, you can open and save properly.