Even after files are deleted, your Mac often saves an invisible copy of the file for a while, until it is overwritten by new data. Disk Drill will scan your Mac and check for any hidden files. It can also help repair lost or corrupted partitions, so if you’re having trouble seeing files on an external drive, it may be able to help with that too.
Check out the steps below for a quick overview of Mac data recovery for presentations. The best part is that the Basic edition of Disk Drill is completely free, so there is no risk in downloading the app and giving it a try.