Please don’t go through any lengthy reinstalls or plunge down the troubleshooting rabbit hole before you hear me out. When you see the prohibitory symbol, please don’t panic. Of course, we’re talking about products like the Mac Pro, Mac mini, iMac, MacBook, MacBook Air, and MacBook Pro.
The is one of the symbols that users of Apple products running macOS rightfully fear. Here’s what my MacBook Pro’s screen showed me: Over the last week, I encountered the dreaded Apple “prohibitory symbol” - do not enter sign or stop sign - twice: once when just booting into macOS Mojave 10.14 beta 4 and again when updating to macOS Mojave 10.14 beta 8. SEE RELATED: The fix to Mojave slowing down to a crawl and freezing.
