Question: Disk First Aid is a free software utility made by which organzation, that was bundled with all computers running the classic Mac OS, this tool verifies and repairs a limited number of directory structure problems on any HFS or HFS Plus hard disk or volume?
Sentence (from "HFS Plus"): At WWDC 2017, Apple announced macOS High Sierra, in which the default file system of Mac is changed to APFS.
Relevant evidence: No