You can kill processes the same way you would an app that’s crashed. To see the memory, click the “Memory” tab, and reorder the “Memory” column in descending to see similar results. Sometimes, performance issues are caused by memory leaks, where a particular task or process eats up all the available memory.

If you spot anything using more than its fair share, click it, and then click the “X” to kill the process. This way, the apps using the most processing power appear at the top. Click the “CPU” tab and view the “% CPU” column in descending order. If you’re not sure which app has crashed, or you think one crashed in the background, launch Activity Monitor. You can also use the keyboard shortcut Command+Option+Esc to force quit the current app. If you suspect an app crashed, right-click its icon in the Dock, hold the Option key on your keyboard, and then click Force Quit. Sometimes, just the app that’s crashed exhibits this behavior other times, misbehaving software might attempt to take your whole machine down with it. When software isn’t working correctly, it can make your machine seem unresponsive. RELATED: 10 Quick Ways to Speed Up a Slow Mac App Crashes: How Software Can Slow Down Your Mac

The company only charges you for repairs after it has your consent to make them. Remember, it’s free to book an appointment at an Apple Store, find out what’s wrong with your machine, and how much it will cost to fix. If you want Apple to repair your machine, you have to pay out of pocket if the warranty’s expired, unless you have AppleCare. From there, they should be able to recommend a fix for the problem. If you book a free Genius appointment at an Apple Store, they run a full set of diagnostics on your machine. In a worst-case scenario, you can always ask Apple to take a look.

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