There are few things more frustrating that your Mac fails in full swing. If you've ever lost all your work on a frozen Mac, or have experienced slowdowns frequently as a result of the machine lock, don't despair. We have put together the most common solutions for when your Mac stops and stops responding. In other words: how to resurrect a frozen Mac.
Force the closure of applications that do not respond
The first thing you should try if your Mac does not respond is to verify if any application has been frozen, since sometimes this can also block your computer. If an application has been locked and closed, it will not work, so try pressing Ctrl + click on the icon in the Dock, then move the pointer to the Exit button. Hold option (labeled Alt on some Mac keyboards) and Quit is transformed into Force Close; click ah.
Alternatively, try pressing Opt + Cmd + Esc to open the Force close window. Select the application you want to close, click Force close (or Restart if Finder has been frozen), then click Force close in the confirmation dialog box.
If your Mac is completely locked and the previous steps don't work, press Ctrl + Opt + Cmd and the power button at the same time; This will restart your Mac.
Reset the system management controller
The system memory controller (SMC) manages all kinds of behind-the-scenes functions on your Mac, from battery management to keyboard backlight. If your Mac continues to freeze, it may be that the SMC should restart.
What you have to do depends on whether your Mac has a T2 security chip. If you are using a MacBook that doesn't have it (which means you don't have at least one 2016 or more recent MacBook Pro), turn it on, then press Shift + Ctrl + Opt and the power button at the same time. Hold all these keys for 10 seconds and then sultalas. Now press the power button to turn on your Mac. If you are using a Mac desktop without a T2 chip (such as an iMac), turn it off, disconnect the power cord and wait 15 seconds, plug it back in and turn it on.
If your Mac has a T2 chip, the process is different. For both MacBooks and desktop Mac, turn off the device and then press and hold the power button for 10 seconds. Press it and wait a few seconds, then press it again to turn on the Mac.
If you are using an older MacBook with a removable battery, you must follow the steps indicated on the Apple website.
Reset PRAM / NVRAM
Your Mac's PRAM and NVRAM are small sections of memory that store certain settings that the computer must access quickly. If your Mac is freezing, there may be an error with the PRAM or NVRAM.
Restoring them may help, and the process is the same for both cases. First, turn off the Mac, then turn it on and immediately press Opt + Cmd + P + R. Hold these keys for 20 seconds; Your Mac will restart during this time, but keep the keys pressed for 20 seconds.
If the Mac usually plays a startup sound when you turn it on, release the keys once you've heard it. If the Mac has a T2 security chip, you can release them once the Apple logo has appeared and disappeared a second time.
Note that if you have a firmware password set, you must deactivate it before you can reset the PRAM and NVRAM. Apple has instructions on how to disable the firmware password on its website.
Boot in safe mode
Booting the Mac in safe mode may solve the problems associated with freezing or it can help you identify what is causing the problem. Safe mode verifies the integrity of your startup disk and disables the execution of certain applications and processes.
To boot in safe mode, turn off the Mac, turn it on again and immediately press and hold the Mays key. Release the Mays key when you see the login window. If you have encrypted the startup disk with FileVault, you may have to log in twice: once to unlock the startup disk and the second to log in to Finder.
Now try restarting your Mac using the normal startup procedure. If you can use your Mac without problems, then the safe mode may have fixed the lock. If the freeze persists when you use your Mac outside of safe mode, you may have a problem with the login items (applications that are loaded the first time you log in), Wi-Fi networks or an external device, already that everyone is disabled or limited by safe mode.
Apple's support page has more information about safe mode, which can help.
Run the Apple Diagnostic Test (or the Apple Hardware Test on previous Macs)
If the freeze continues and you think it could be due to a hardware problem, run the Apple Diagnostic Test. First, disconnect all external devices, except the keyboard, mouse, screen, Ethernet connection (if you are using it) and the power cable. Make sure your Mac is on a solid and flat surface and is well ventilated, then turn it off.
Turn your Mac back on and then press and hold the D key. Press and hold until a screen appears asking you to select a language. Choose your language and wait while the diagnostic test is running. This should only take a couple of minutes.
If the test finds any problem, list it together with possible solutions. I will also give you reference codes for any problem detected, as well as ways to communicate with Apple so you can solve it.
If your Mac is prior to June 2013, you must use the Apple Hardware Test Tool.
Take your Mac to an Apple store
Sometimes, the only thing you can do is take your Mac to Apple and be looked at; It is the best decision to follow if you have tried all the previous steps and you still cannot prevent your Mac from freezing.
To find the nearest Apple store or authorized Apple service provider, visit locate.apple.com and follow the on-screen instructions.
You don't have to go directly to Apple to repair your Mac; Third-party repair shops can also help you. It's a good idea to make sure that the one you choose is an authorized Apple service provider, since these stores only use original parts and must be approved by Apple for the quality of their services.