Overheating, software errors, incorrect permissions and malfunctioning hardware
can each cause a MacBook to suddenly shut itself down. Fixing software glitches or heating problems can often be fixed yourself at no cost, but if an internal component is malfunctioning, you may have to take the MacBook in for repair.
Why does my MacBook Air shut down randomly?
A depleted battery
could be the cause of your Mac randomly shutting down. It's pretty simple to check your battery status, and if you've reached your maximum cycle count, well, it's time for a new one. Check your battery: … Under Battery Information, you'll find your current cycle count.
Why does my MacBook Air randomly go black?
If your screen goes black, and then comes back on when you press a key or click the mouse or trackpad button,
your Mac or display has gone to sleep
. To save energy, your Mac and display go to sleep automatically when they're not in use. You can set your Mac and display to sleep at different times.
How do I stop my MacBook Air from shutting down automatically?
- Select “System Preferences” from the Apple drop-down menu at the top left corner of the desktop. …
- Click the “Energy Saver” icon in the Hardware section. …
- Click the “Settings For” drop-down box and select “Power Adapter” from the drop-down list. …
- Click the “Computer Sleep” slider and drag it all the way to the right.
Why does my MacBook Air shut off when I unplug the charger?
The computer (in this case your MacBook Air) turns off
because there is no more/not enough charge in the battery
. If it's necessary to have the power adapter plugged in when trying to turn it on, it's a sure sign that the battery is discharged.
How do I check my Mac for malware?
- Open the app and click Smart Scan.
- Wait a few minutes.
- Check the results of the Mac virus scan under Protection.
- If the app has found any malicious files, click Remove to get rid of them.
How do you fix a black screen of death on a MacBook Air?
- Power your Mac down completely.
- Press the power button to start your Mac's bootup process.
- Immediately hold down the option + command + P + R keys while your Mac boots.
- Hold the keys for at least 20 seconds.
How do I change the screen timeout on a MacBook Air 2020?
- Set your Mac to go to sleep and wake up at a specific time: Click Schedule in the bottom-right corner, then select the options you want to use. …
- Set the amount of time your computer or display should wait before going to sleep: Drag the “Computer sleep” and “Display sleep” sliders.
Why does my MacBook Air keep sleeping?
Click on the Apple menu on the top left of your screen and select System Preferences. Open Energy Saver by clicking on the light bulb icon.
Check the Prevent computer
from sleeping automatically when the display is off box.
How do I turn off my MacBook Air 2020?
- Choose the Apple key→Shut Down. A dialog box appears, asking whether you're sure you want to shut down. …
- Press Control+Eject (or press the power button). When a dialog box appears, click the Shut Down button.
- Press and hold the power button to force your Mac to shut down.
How do I shutdown my MacBook air?
On your Mac,
choose Apple menu > Shut Down
. If you don't want app windows that are open to reopen when your Mac restarts, deselect “Reopen windows when logging back in.” A Mac is completely shut down when the screen is black.
Should I turn off my Mac every night?
When put to sleep your Mac will use a reduced amount of energy and can be ‘woken' a lot quicker than the time it takes to power up a Mac that's been turned off. … A good rule of thumb is that if you're only going to be away from your Mac for an hour or two or even overnight,
letting it sleep is
probably the best method.
What do I do when my MacBook air turns off when I unplug it?
This can cause the
System Management Controller (SMC)
to believe the power level is below a set threshold resulting in it triggering the computer to go into deep sleep mode and shutting off when unplugged. You can fix this by resetting the SMC and letting the battery go through a few complete charging cycles.
Is it bad to unplug Mac before fully charged?
You
can safely plug/unplug any smart Lithium powered device whenever you wish
, regardless of charge state. Frequent deep cycle discharges though, will cause a lithium battery to degrade faster than more frequent charges and shallower discharge cycles.
How do I restore factory settings on my MacBook air?
- Hold down the Command and R keys on the keyboard and turn on the Mac. …
- Select your language and continue.
- Choose Disk Utility and click Continue.
- Choose your startup disk (named Macintosh HD by default) from the sidebar and click the Erase button.
How do you tell if your Mac is infected?
- Your Mac is slower than usual. …
- You receive security alerts without scanning your Mac. …
- Your browser has a new homepage or extensions you haven't added. …
- You are bombarded with ads. …
- You can't access personal files and see a ransom/fine/warning note.
