Install macOS High Sierra without APFS Conversion

If you need to install macOS High Sierra without APFS Conversion, my walkthrough video will help.

00:00 – Intro.
00:05 – Windows 10, build 1903 default wallpaper.
00:10 – Terminal.
00:45 – Install the macOS High Sierra app.
00:50 – Drag the app to the Terminal window
00:55 – Remove and trailing spaces.
01:00 – Paste or Type “/Contents/Resources/startosinstall --converttoapfs NO
01:15 – If there is a license error, use the release date workaround.
07:15 – Automatic reboot.
07:30 – Confirm the PC’s date and time are right.
07:45 – Open Disk Utility.
07:50 – Success. SSD was not converted to APFS.
08:00 – SSD is now ready for a second OS in the second partition.


Steve Pringle

About The Author: Stephan Pringle is an Information Technology Specialist. He covers hardware and software and provides tips for you to troubleshoot and repair issues on your own. In his spare time, he writes articles about the State of New York on his Hackintosh and HackBook and that has helped him to become the top contributor of the New York City section of Yahoo! Answers.