Like every other devices, if you are a newcomer to Mac OS X, you might be going through several issues ranging from software malfunctioning to booting issues as there are hell lot of a new things to know for those who haven’t used it before. There could also be some serious problems other than your personal errors, which at times would prevent your operating system from opening. On such occasions, it is safer to boot Mac using Safe Mode.
Why and When We Need to Boot Mac in Safe Mode
Mar 19, 2017 Fixit How to boot mac os x into safe boot or safe mode - Duration: 6:57. Easycomputerfixes 87,043 views. How To Enable APFS in macOS High Sierra - Duration: 2:28. Oct 20, 2014 After upgrading to OS X Yosemite, you might encounter a problem where your Mac appears to always boot in Safe Mode, a maintenance boot environment where OS X only loads minimal and essential system services, in addition to running a few system checking routines.In general this mode is invoked purposefully by holding the Shift key down at boot; however, there are times when the.
Safe Mode on Mac, which is commonly termed as Safe Boot is a way actually to boot your operating system by subjugating most of the system softwares and kernel extensions, allowing only the basic essentials required to just run the system. It is often used to troubleshoot your system when you are having trouble with booting your system or any malware has attacked your computer. Malwares are very shrewd in preventing system processes from eradicating their colonial destruction. Thus, booting the system in safe mode prevents the malwares from blocking the process and you can easily get rid of them. Another case is that if you forgot Mac OS admin password, then booting Mac in Safe Mode will help you recover your account password.
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Heeding to the importance of the safe mode on Mac we would thereby demonstrate 2 important ways here to securely boot and exit the safe mode.
Also read: How to Boot in Safe Mode on Windows 10?
Method #1: Enter & Exit Safe Mode using Keyboard
In this section we would make use of certain key commands from the keyboard to activate the safe mode instead of trying out complex procedures, thus it is suitable for those who are not adept with handling system commands in Terminals. Simply go through the instructions given below to activate the Safe Mode:
Step 1. Firstly power down the Mac OS X, by clicking “Shut Down….” option from the sub-menu of the “Apple” logo.
Step 2. Now; once it is shut down, turn it on by pressing the power button.
Step 3. Press the “shift” key and hold it the moment you hear the startup sound. And keep holding it until the Apple logo appears. You can release the key once the logo has turned up.
Step 4. The operating system would now boot in Safe Mode, which might take few moments as the directory structure integrity is being checked by your Mac.
Step 5. Before entering the Safe Mode, you still need to enter your Password and Username as your conformational credentials to your specified account, though you get to see the Safe Mode displayed on the upper right corner of the screen.
Step 6. Once you are in, you can carry out your necessary tasks with the limited basic tools and system softwares, which will prevent malicious viruses or malwares from being activated.
Step 7. After you have done your task, click on “Apple” logo and select “Restart” option which would reboot the system in the normal mode.
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Step 8. Click Software and you can see the Boot Mode is Normal or Safe.
If you are adept with using Terminal commands, then the next method would be the best option for users like you to follow up.
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Method #2: Boot & Exit Mac Safe Mode using Terminal
Here in this section, we would make use of the Terminal tool which is command interface for UNIX-based operating systems, and very much similar to cmd in Windows. All that you have to do is to follow the given steps:
Step 1. Go to the “Utilities” folder from the “Applications” folder and open the “Terminal” option.
Step 2. Once the empty dialog box of the “Terminal” turns up, paste the following command and press “Return”:
sudo nvram boot-args=”-x”
Step 3. Enter your Mac password if asked.
Step 4. Now; reboot your computer by clicking “Restart” option from the context menu of Apple logo.
Step 5. Log-in with your Mac username and password.
Step 6. Once you are in the Safe Mode, perform all your necessary functions, and once you are done, open the “Terminal’ dialog box again and type in the following command and press “Return”:
sudo nvram boot-args=””
Step 7. Now; reboot your Mac and it would boot in the normal mode once again allowing you to use all the system tools and extensions.
Conclusions:
Safe Mode is a magnificent boot option to enter your operating system in such a way that nothing harmful or serious can sneak in to interrupt your task. But you cannot remain in the safe mode all the time, as you would definitely need to exercise your entire admin privileges to carry out your daily tasks, so simply follow the guidelines outlined above to accurately and securely enter safe mode and exit it afterwards.
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Reasons to start your Mac in Safe Mode
Mac's Safe Mode minimizes the applications you have available on your Mac to help identify where any issues might be coming from. Starting up your computer and making it run in Safe Mode is also known as a safe boot (safe boot is how your Mac starts, Safe Mode is how it runs).
Booting in Safe Mode doesn’t just restrict your applications: A safe boot also checks through your startup drive to make sure there are no problems there.
A fault in your system (like corrupted boot sector) might be preventing you from using your Mac at all. By booting in Safe Mode, your Mac can work with macOS core processes to get back into the system and identify problems, such as floating extensions or rogue applications, that you can then remove.
What happens in Safe Mode
When your computer is prompted to perform a safe boot, it will perform a number of tasks before you can use it, which include:
Troubleshooting in Safe Mode
Once your Mac is running in Safe Mode, some applications will no longer be available. If your Mac is working fine in Safe Mode, then it’s likely that one of the restricted applications is responsible for the issues. You can manage the list of startup applications manually, removing the potential buggy apps one at a time to see if it affects the performance.
Open Apple Menu > System Preferences Click Users & Groups icon Choose your username, then click Login items Use [-] sign to remove startup items
There is still a problem though. Manually deleting problem applications still leaves their traces deep in the system, so it’s best to use a dedicated Mac cleanup software like CleanMyMac X to double check your Mac is clear of any problematic files.
If your Mac continues to run into difficulties even in Safe Mode, you may need to use Mac’s native recovery tool, Disk Utility.
Identifying the problem
Here is a list of most common system issues Mac users encounter when their Mac isn’t running at peak performance:
To diagnose your Mac more precisely, we recommend performing a full scan with some dedicated Mac cleaning app. As described above, CleanMyMac is our favorite (you can download this app here for free). This app made by the guys from MacPaw sports a handy Dashboard, with hardware health monitors among others, which should give you a clue as to what’s wrong with your system.
How to start your Mac in Safe Mode
To restart your Mac in Safe Mode, begin with your Mac switched off or restart it.
1) As soon as your Mac switches on and lights up, press and hold the Shift key.
2) Release the Shift key as soon as the login window appears.
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Avisynth for mac os x. That’s it, your Mac has now been booted in safe mode. Note that it may take longer than usual to boot your computer: This is because there are several checks being performed before it’s ready to use.
If you don’t trust your Mac to turn off and on again without further complications, or for some other reason you would prefer not to safe boot from the startup screen, there is an alternative using the Terminal application.
1) Locate Terminal: Applications > Utilities > Terminal.
2) In the Terminal command line, type the following code and then press Enter:
sudo nvram boot –arg=”-x”
3) You will be asked to enter your password to authorize.
4) Your Mac will now reboot in safe mode. You will not have to hold the Shift key when the computer restarts, simply log in when prompted.
Running your Mac in Safe Mode
If you’re not sure whether your safe boot was successful, there are a couple of ways you can check.
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Working in Safe Mode
Running your macOS in Safe Mode is normally used to troubleshoot glitches that you have noticed, such as lag, crashing, or spontaneous closures of applications. You should try to use your Mac as you normally do so that you can see if the issues have disappeared in Safe Mode or are still there.
You will find that some features aren’t available, such as third-party fonts, the DVD player, and audio in/out devices, which may limit how productive you can be, so it’s best to identify the fault in Safe Mode, fix it, and return to normal mode to work as usual.
Exiting Safe Mode
Once you’re finished in Safe Mode, simply restart your Mac. It should then reboot as normal, hopefully with improved performance.
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If you’re using Terminal commands to return to normal, type
sudo nvram boot-args='
It may take a little longer than usual to shut down from safe mode, but don’t become impatient and use the power button to force a hard shut down.
Booting in Safe Mode Unprompted
If your Mac automatically enters Safe Mode itself without you pressing shift or using the Terminal, don’t panic. Your Mac may have detected an issue that it thinks needs repairing in Safe Mode. If this happens only once, then great, your Mac did its job and cleaned up the issue before it could cause any more problems.
If your Mac is stuck restarting in a Safe Mode loop, try entering another startup configuration, the Recovery Mode, by pressing Command (?) + R upon startup. This will perform a Disk Utility scan to check for issues, and, if that doesn’t work and you have backed up your files, you can try a reinstalling a clean copy of macOS to start fresh.
Tip: Check your keyboard is clean and that there is no debris beneath the keys. If the shift key has become stuck, your Mac will think it’s being pressed during startup to initiate a safe boot.
Safe Mode limitations
Unfortunately, the responsibility to locate software issues still resides with the user in Safe Mode. A safe boot will check for disk problems, but if it fails to turn anything up you may be resigned to shifting through your applications list to see what might be causing the problem.
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Luckily, some helpful maintenance utilities can be run while in Safe Mode. CleanMyMac X is one of those so check it out. It clears through your junk before it can impact on your system, but if your macOS is starting to lag it might be time to perform a full clean-out of those unused applications. With an average of 62GB of junk cleaned from an average Mac, it's maybe just the tool you need to put your Mac back on track.
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