macOS Support Essentials 10.15 - Apple Pro Training Series is the official curriculum of the Apple Catalina 101: OS X Support Essentials 10.15 course and preparation for Apple Certified Support Professional (ACSP) 10.15 certification—as well as a top-notch primer for anyone who needs to support, troubleshoot, or optimize macOS Catalina.
This guide provides comprehensive coverage of Catalina and is part of the Apple Pro Training series—the onl...
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