Mac guides.
Straight answers for the things that make a Mac slow, hot, loud or full.
Activity Monitor on Mac: Where It Is and How to Use It
Activity Monitor is in Applications › Utilities, or press Command-Space and type its name. What each tab and column means, and how to quit a process.
ReadHow to Check Memory Usage on Mac
Open Activity Monitor and click Memory. The Memory Pressure graph matters more than Memory Used: green is fine even if RAM looks full. How to free memory.
ReadHow to Clear Cache on Mac
Quit the app, open ~/Library/Caches with Finder's Go to Folder and move its folder to the Trash. Browsers and developer tools have their own safe methods.
ReadHow to Clear System Data on Mac
System Data holds caches, logs, local Time Machine snapshots, device backups and developer files. What's safe to remove on a Mac and what to leave alone.
ReadCtrl-Alt-Delete on Mac: What to Press Instead
The Mac's Ctrl-Alt-Delete is Option-Command-Escape, which opens Force Quit. Activity Monitor is the Task Manager. Lock, log out and restart, mapped.
ReadHow to Force Quit an App on Mac
Press Option-Command-Escape, pick the app and click Force Quit. If the whole Mac is frozen, hold the power button for about 10 seconds until it turns off.
ReadA Mac Cleaner That Explains Before It Deletes
A good Mac cleaner shows what it found, explains it and lets you undo. SystemWatch scans storage, moves items to the Trash and keeps a Cleanup History.
ReadMac Fan Control
macOS runs Mac fans automatically, and that's right most of the time. When manual fan control helps, when it doesn't, and how SystemWatch does it safely.
ReadHow to Check Your Mac's Temperature
macOS doesn't show temperatures, so you need an app that reads the sensors. Normal ranges for Apple silicon and Intel Macs, and what thermal pressure is.
ReadMacBook Overheating: What's Normal and How to Fix It
A MacBook running hot under heavy load is usually normal. If it's hot at idle or slowing down, check for runaway apps, blocked airflow and indexing.
ReadHow to Stop the Spinning Wheel on Mac
The spinning wheel means an app is too busy to respond. Wait a minute, force quit it, then check Activity Monitor for CPU, memory pressure and a full disk.
ReadHow to Stop Apps From Opening at Startup on Mac
Open System Settings › General › Login Items & Extensions and remove the app from Open at Login. Background items, launch agents and leftovers explained.
ReadTask Manager for Mac: Activity Monitor and SystemWatch
The Mac's task manager is Activity Monitor. Press Command-Space, type Activity Monitor and press Return. What each tab shows, and what SystemWatch adds.
ReadWhy Is My Mac So Slow?
Most slow Macs come down to an app hogging the CPU, too little memory, a nearly full disk or heat. Check each in Activity Monitor before changing anything.
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