How to force quit on Mac (Ctrl-Alt-Delete)How to force quit on Mac when an app freezes: Option-Command-Esc (the Mac’s Ctrl-Alt-Delete), the Apple menu, the Dock, Activity Monitor.
How to scan documents on MacHow to scan documents on Mac with your iPhone (Continuity Camera), into Notes, or with a scanner in System Settings and Image Capture. Free, built in.
How to check RAM on Mac and free it upHow to check RAM on Mac in About This Mac and Activity Monitor, read memory pressure and swap, and what clearing RAM on a Mac really means.
How to show hidden files on MacHow to show hidden files on Mac with Command-Shift-Period in Finder, open the hidden Library folder, list hidden files in Terminal, and what not to touch.
Where iPhone backups are stored on Mac and how to delete themWhere iPhone backups are stored on Mac, how to see what they take and how to delete old iPhone and iPad backups safely in Finder.
How to right click on MacHow to right click on Mac: Control-click, a two-finger click on a MacBook trackpad, the right side of a Magic Mouse, or any two-button mouse.
How to convert HEIC to JPG on MacHow to convert HEIC to JPG on Mac for free: one photo in Preview, many at once with Finder Quick Actions, from Photos, and how to make an iPhone shoot JPEG.
How to undo on Mac: Command-Z and redoHow to undo on Mac with Command-Z or Edit › Undo, redo with Shift-Command-Z, undo a file move or delete in Finder, and go back to an earlier version.
How to factory reset a MacHow to factory reset a Mac: what to do first, Erase All Content and Settings on newer Macs, and the Recovery way for older Intel Macs.
App permissions on Mac: see which apps can use your camera and moreApp permissions on Mac: where to allow camera, microphone and screen recording, and how to see and revoke every app’s access at once with MacWashing.
How to split screen on MacHow to split screen on Mac: drag windows to the screen edges, use the green button or Fn-Control shortcuts, or open two apps in Split View.
npm cache clean: How to clear npm cache on MacHow to clear npm cache on a Mac with npm cache clean --force, why npm asks for --force, and how to clear the Yarn and pnpm caches.
How to clear Gradle cache on MacHow to clear Gradle cache on a Mac: what ./gradlew clean really deletes, how to stop the daemon and empty ~/.gradle/caches, and old Gradle versions.
How to install Linux on MacHow to install Linux on Mac: in a virtual machine on any Mac, with Asahi Linux on M1 and M2 Macs, or next to macOS on an Intel Mac.
How to print screen on MacHow to print screen on Mac without a Print Screen key: Shift-Command-3, 4 and 5, where screenshots are saved and how to copy one to the clipboard.
How to AirDrop from iPhone to MacHow to AirDrop from iPhone to Mac: let the Mac be found, send from the Share menu, where the files land, and what to do when the Mac doesn’t appear.
How to connect AirPods to MacHow to connect AirPods to Mac through your Apple Account or Bluetooth settings, switch sound to them, and what to do if they don’t show up.
How to flush DNS cache on MacHow to flush DNS on Mac with one Terminal command, clear Chrome’s own DNS cache, and when flushing DNS actually helps.
How to speed up a slow MacHow to speed up a Mac: find what slows it down in Activity Monitor, free disk space, trim login items, update and restart. No myths.
How to clear cookies on MacHow to clear cookies on Mac in Safari, Chrome and Firefox, for one site or for all of them, and what changes after: you get signed out of sites.
flutter clean: how to clear Flutter cache on MacWhat flutter clean deletes, how to clear Flutter cache on a Mac with dart pub cache clean, and where the Android and iOS parts keep their caches.
How to change default browser on MacHow to change default browser on Mac in System Settings or from the browser itself, how to switch back to Safari, and where the default email app is set.
How to find large files on MacHow to find large files on Mac with Storage settings, a Finder search by file size or Terminal, and what to check before you delete them.
How to boot Mac into Recovery ModeHow to boot a Mac into Recovery Mode on Apple silicon and Intel, Internet Recovery key combinations, and what you can do in macOS Recovery.

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