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1. HOW TO RESET PRAM ON HIGH SIERRA MACBOOK AIR PRO
2. HOW TO RESET PRAM ON HIGH SIERRA MACBOOK AIR SOFTWARE

Clean up your MacBook hard drive and fix potential disk errors - you can do this quickly using CleanMyMac.Press the power button for 3-5 seconds to force a shut-down of the computer.

HOW TO RESET PRAM ON HIGH SIERRA MACBOOK AIR PRO

Reasons: It happens on rare occasions, but the issue could result from over-used system resources, MacBook Pro uptime too long, hard disk errors, etc. Sometimes you also hear the loud noise coming from the fan (if you are using an old MacBook with a spinning hard drive). You are unable to use the keyboard to type, the mouse cursor is unable to move as you want, the same screen seems just hang there for good. Scenario 2: macOS totally freezes (you can’t move cursor or click anything)ĭetails: the whole system becomes completely unresponsive. Warning: a force quit on a running Mac application may cause you to lose any content that hasn’t been saved. You can also press “Command + Option + Esc”, it does the same thing. Then highlight the unresponsive app, and click “Force Quit” to exit. To do so, go to the Apple logo on the top left corner, click on it and select the “Force Quit” option. It may become responsive again (hopefully). If you haven’t saved your work, wait for a few minutes.

HOW TO RESET PRAM ON HIGH SIERRA MACBOOK AIR SOFTWARE

Reasons: the app may be waiting for other hardware resources to become available, or the software may have a bug that drops itself into a calculation loop.

The application won’t respond to any commands. When you click around, the app just hangs with the cursor spinning like a pinwheel. For example, Adobe Photoshop, iMovie, or sometimes the web browser you use ( Safari, Chrome, Firefox). Scenario 1: An app is frozen (you can still move cursor)ĭetails: this kind of app usually demands a lot of system resources to process.