September 2026

Choose a Mac startup disk permanently or for one restart, use Apple Silicon startup options, Intel Option key, Boot Camp, bootable drive requirements, and Recovery Mode differences.

Move Mac screenshots from the Desktop to Documents, Clipboard, Mail, Messages, Preview, or a custom folder using the Screenshot toolbar or Terminal.

Zip files and folders on Mac with Finder or Terminal, add password protection, compare compressed sizes, and avoid hidden .DS_Store files for Windows recipients.

Batch rename Mac files with Finder, replace text, add prefixes or suffixes, number files, build Automator Quick Actions, use Terminal carefully, and undo immediately.

Start Apple Silicon or Intel Macs in Safe Mode, exit Safe Mode, understand what macOS disables, and use results to identify login items, extensions, disk issues, or Recovery Mode needs.

Set Chrome, Firefox, Edge, Safari, or another browser as the Mac default, use browser settings shortcuts, and understand app-specific exceptions and device-specific defaults.

Stop Desktop and Documents from defaulting to iCloud Drive, change Safari and app save locations, understand local copies, iCloud folders, and storage impact.

Fix Finder that will not open or freezes by relaunching Finder, checking Activity Monitor, disconnecting external drives and network shares, checking iCloud Drive sync, storage, updates, and safe mode.

Add USB, Wi-Fi, AirPrint, and IP printers on Mac, choose drivers, set a default printer, fix discovery issues, install manufacturer tools, clear stuck print jobs, and remove printers.

Add a separate Mac user account, choose Standard or Administrator, set passwords, use Fast User Switching, understand Guest User, remove accounts safely, and compare Family Sharing.