What Causes a MacBook Air to Freeze?
Many simple fixes can solve a frozen MacBook Air.
Each of these issues has very different solutions.

Force quit the app.
Try force quitting an app via the Apple menu.
smack the Apple icon on your laptop and scroll down to Force Quit to terminate the app.
Force quit the app via Activity Monitor.
cycle your MacBook Air.
You’ll lose all unsaved work, but it can fix many freezing issues.
Unplug any peripherals attached to your MacBook Air.
Sometimes, a peripheral can be causing an issue with your MacBook Air.
Try unplugging it to see if it corrects the problem.
Boot into Safe Mode.
Free up disc space.
All computers can slow down substantially if they’re low on disc space.
Try removing unnecessary apps and documents to speed up your MacBook Air and stop it from freezing.
Reset your MacBook Air’s PRAM or NVRAM.
It’s a simple key combination that can make a huge difference.
Contact Apple customer support.
If you continue to have issues with your MacBook Air freezing, contact Apple customer support.
If your laptop is still under warranty, you may be able to get it repaired for free.
Failing that, Apple customer support can still advise you on any other repair options and assist you further.
FAQ
If yourMac won’t turn on, it’s likely due to a power issue.
First, check the power connections and swap out the power cable or adapter if possible.
Go to theApplemenu > selectRestartor press and holdControl+Command+Powerbutton/Ejectbutton/Touch ID sensor.
If that doesn’t work,force reset your MacBook Airby holding down thePowerbutton.
If yourMac won’t start up,disconnect all your Mac’s peripherals and try using Safe Boot.
Reset the PRAM/VRAM and the SMC if possible, thenrun Apple’s Disk Utilityto repair your hard drive.
If you’re still having issues, use Safe Boot to troubleshoot your graphics software and hardware.