The Safe Mac

• The Safe Mac Adware Removal Tool
• Mac Os Security
• Safe Mode On Mac

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).

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2. Immediately after your Mac starts (some Mac computers play a startup sound), press and hold the Shift key. Release the Shift key when you see the gray Apple logo and progress indicator. To leave safe mode, restart your Mac again, but don't press and hold any keys during startup.

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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:

• A directory check of the startup drive;
• Running on only the bare minimum of necessary kernel extensions;
• Disabling all startup or login applications;
• Deleting the dynamic loader cache, which can help fix blue screen freeze on startup (OS X 10.5.6 or later);
• Disabling all fonts that are not supplied by Apple and moving all font caches to the Trash.

Troubleshooting in Safe Mode

The Safe Mac Adware Removal Tool

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

Mac Os Security

Here is a list of most common system issues Mac users encounter when their Mac isn't running at peak performance:

• Corrupted startup files or login applications
• Software conflicts
• Damaged hardware
• Too many apps running, or too much junk cluttering up your disk

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.

Usb 3 0 mac. 2) Release the Shift key as soon as the login window appears.

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.

Open source pdf mac. 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.

• Update mac os 10 11. ‘Safe Mode' will appear in red in the menu bar

• The boot mode will be listed as ‘Safe Mode' (instead of ‘Normal'). To find your boot mode, click on the Apple logo in the menu (top left) and select This Mac. Choose System Report, then Software, and from there you will be able to see whether you are in normal or safe mode.

• Your performance speed will change. Typically macOS will run slower when it is in Safe Mode due to the reduced processes, but if you have noticed some serious lagging this may be improved by the faulty applications being restricted.

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.

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.

Safe Mode On Mac

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.

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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Erasing your disk: For most reasons to erase, including when reformatting a disk or selling, giving away, or trading in your Mac, you should erase your entire disk.

Erasing a volume on your disk: In other cases, such as when your disk contains multiple volumes (or partitions) and you don't want to erase them all, you can erase specific volumes on the disk.

Erasing a disk or volume permanently deletes all of its files. Before continuing, make sure that you have a backup of any files that you want to keep.

How to erase your disk

1. Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
   If you're not erasing the disk your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder.
   
2. Choose View > Show All Devices from the menu bar in Disk Utility. The sidebar now shows your disks (devices) and any containers and volumes within them. The disk your Mac started up from is at the top of the list. In this example, Apple SSD is the startup disk:
   
3. Select the disk that you want to erase. Don't see your disk?
4. Click Erase, then complete these items:
   • Name: Type the name that you want the disk to have after you erase it.
   • Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
   • Scheme: Choose GUID Partition Map.
5. Click Erase to begin erasing your disk and every container and volume within it. You might be asked to enter your Apple ID. Forgot your Apple ID?
6. When done, quit Disk Utility.
7. If you want your Mac to be able to start up from the disk you erased, reinstall macOS on the disk.

How to erase a volume on your disk

1. Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
   If you're not erasing the volume your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder.
2. In the sidebar of Disk Utility, select the volume that you want to erase. The volume your Mac started up from is named Macintosh HD, unless you changed its name. Don't see your volume?
3. Click Erase, then complete these items:
   • Name: Type the name that you want the volume to have after you erase it.
   • Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
4. If you see an Erase Volume Group button, the volume you selected is part of a volume group. In that case, you should erase the volume group. Otherwise, click Erase to erase just the selected volume. You might be asked to enter your Apple ID. Forgot your Apple ID?
   
5. When done, quit Disk Utility.
6. If you want your Mac to be able to start up from the volume you erased, reinstall macOS on that volume.

Reasons to erase

You can erase at any time, including in circumstances such as these:

• You want to permanently erase all content from your Mac and restore it to factory settings. This is one of the final steps before selling, giving away, or trading in your Mac.
• You're changing the format of a disk, such as from a PC format (FAT, ExFAT, or NTFS) to a Mac format (APFS or Mac OS Extended).
• You received a message that your disk isn't readable by this computer.
• You're trying to resolve a disk issue that Disk Utility can't repair.
• The macOS installer doesn't see your disk or can't install on it. For example, the installer might say that your disk isn't formatted correctly, isn't using a GUID partition scheme, contains a newer version of the operating system, or can't be used to start up your computer.
• The macOS installer says that you may not install to this volume because it is part of an Apple RAID.

About APFS and Mac OS Extended

Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you.

How to choose between APFS and Mac OS Extended

Disk Utility tries to detect the type of storage and show the appropriate format in the Format menu. If it can't, it chooses Mac OS Extended, which works with all versions of macOS. If you want to change the format, answer these questions:

• Are you formatting the disk that came built into your Mac?
  If the built-in disk came APFS-formatted, Disk Utility suggests APFS. Don't change it to Mac OS Extended.
• Are you about to install macOS High Sierra or later for the first time on the disk?
  If you need to erase your disk before installing High Sierra or later for the first time on that disk, choose Mac OS Extended (Journaled). During installation, the macOS installer decides whether to automatically convert to APFS—without erasing your files.
• Are you preparing a Time Machine backup disk or bootable installer?
  Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine backup disk or as a bootable installer.
• Will you be using the disk with another Mac?
  If the other Mac isn't using macOS High Sierra or later, choose Mac OS Extended (Journaled). Earlier versions of macOS don't work with APFS-formatted volumes.

How to identify the format currently in use

If you want to know which format is currently in use, use any of these methods:

• Select the volume in the Disk Utility sidebar, then check the information shown on the right. For more detail, choose File > Get Info from the Disk Utility menu bar.
• Open System Information and select Storage in the sidebar. The File System column on the right shows the format of each volume.
• Select the volume in the Finder, then choose File > Get Info from the menu bar. The Get Info window shows the Format of that volume.

If your disk or volume doesn't appear, or the erase fails

1. Shut down your Mac, then unplug all nonessential devices from your Mac.
2. If you're erasing an external drive, make sure that it's connected directly to your Mac using a cable that you know is good. Then turn the drive off and back on.
3. If your disk or volume still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your disk or Mac might need service. If you need help, please contact Apple Support.

Learn more

• If you can't start up from macOS Recovery, you can use a different startup disk instead.
• If Disk Utility shows a Security Options button in the Erase window, you can click that button to choose between a faster (but less secure) erase and a slower (but more secure) erase. Some older versions of Disk Utility offer the option to zero all data instead. These secure-erase options aren't offered or needed for solid-state drives (SSDs) and flash storage.