What are startup items?
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- Click the Force Quit button in the upper-left corner of the Activity Monitor window (or use the Touch Bar). Choose one of the following options: Quit: This is the same as choosing File Quit within an app.The process quits when it’s safe to do so. If quitting the process could cause data loss or interfere with another app, the process doesn’t quit.
- Normally, if you want to close all of the open apps on your Mac, you'd have to either quit them all one by one or restart, shut down, or log out while making sure to deselect “Reopen windows when logging back in.' The latter option is great, but it doesn't always work in Mac OS X, and what if you don't want to restart, shut down, or log out?
Startup items, or login items, are services and applications that launch every time you start your Mac. These are applications that sneak into startup items without notice, never asking if you need or want them there. This way you may end up with a dozen apps launching as soon as you turn on your Mac, weighing heavily on its processor and memory capacities and slowing it down. Such items can increase your Mac’s startup time and decrease its performance.
Plus, sometimes when you remove an application or a service, it leaves a login item with a broken link. These broken login items are completely useless, cause unwanted messages, and waste your Mac's resources (because they look for non-existent applications). Whether you're running macOS Catalina or El Capitan, or earlier — it's all the same, so just read on.
So, let's go over how to take control of login items, and how to get rid of unwanted, broken or hidden startup items.
How to disable startup programs?
Do you want to stop programs from running at startup? There’s an easy way to remove programs from startup and get your Mac to load faster on launch. The fastest way to turn off startup items on Mac is an app like CleanMyMac X.
You can use the ps command to find the process ID for this process and then use the PID to kill the process. Example $ ps -eaf grep wget saml 1713 1709 0 Dec10 pts/0 00:00:00 wget. $ kill 1713 Method #2 - pgrep. You can also find the process ID using pgrep. Example $ pgrep wget 1234 $ kill 1234 Method #3 - pkill.
- Download CleanMyMac for free.
- Launch the app.
- Open Optimization tab.
- Click on Login items.
- From the list of apps, disable the ones you don’t need on startup.
- Done!
How to change startup programs manually?
Disabling Mac startup programs is possible manually. Therefore, if you have some time and would like to do it yourself, follow the steps below.
Your login items are listed in settings. One of the easiest ways to control startup items is inside System Preferences > Users & Groups.
- Open System Preferences.
- Go to Users & Groups.
- Choose your nickname on the left.
- Choose Login items tab.
- Check startup programs you want to remove.
- Press the “–” sign below.
- You’re done.
- If you need to add an item back, press “+” and choose the app you’d like add.
- Then restart your Mac to see the changes.
How to fix broken startup items?
Broken Mac startup files are left there because some part of apps are left on your Mac long after you’ve moved the app to the Trash. To get rid of these parts and to fix your startup, you’re going to need CleanMyMac again. First, you need to check if they’re among startup items and disable them if so. You can do it following the instructions above. Then you need to remove app leftovers. CleanMyMac works fine on macOS High Sierra and earlier OS.
- Launch CleanMyMac.
- Choose Uninstaller tab.
- Scroll through the list of apps.
- If you spot any app that you’ve deleted, check them.
- Delete the app leftovers you’ve chosen.
You can also find and remove broken login items with the help of System Junk module:
- Choose System Junk tab.
- Click Scan.
- Review details and click Clean.
Finally, you need to clean your macOS startup items through launch services:
- Open Maintenance tab.
- Choose Rebuild Launch Services.
- Hit Run.
- Done.
Once you do it, all broken app data on your Mac will be fixed.
Remove daemons and agents from startup process
If speaking of files, first go to the system folder /Library/StartUpItems. Here you’ll find all the startup files that are being launched with the system. You can delete the login item you think is necessary if you’re totally sure what you are doing.
Also, the /Library/LaunchDaemons folder contains a bunch of preference files that define how the application that is being launched along with the system should work. You might want to delete some of these files as well if you know you don’t need them and removing them is safe.
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The /Library/LaunchAgents contains preference files responsible for the apps that launch during the login process (not the startup).
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The above-mentioned folders contain app-related files. However, you can also check system folders to review whether you need some of the system applications to be running on startup:
- /System/Library/LaunchDaemons - note that besides preference files this folder contains other important system items that are recommended to keep untouched.
- /System/Library/LaunchAgents - most probably, you won’t also find anything worth removing in this folder, however, keeping this location in mind might help you find files related to a problematic app that causes troubles on Mac startup. If you have a problematic application that messes about on login, you can try to trace it back from this folder.
But, if you’re looking for simple ways to remove login items, we suggest using a professional Mac utility. Download CleanMyMac X for free and make unwanted and broken login items a thing of the past.
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Activity Monitor User Guide
You can use Activity Monitor to quit a process, even if it’s in a loop or not responding. You can also send a signal to a process to terminate it. If you attempt to quit a process you don’t own, you may be required to authenticate as an administrator.
- In the Activity Monitor app on your Mac, under the Process Name list, select the app or process you want to quit. An unresponsive process is marked with (Not Responding).Note: The Process Name list is not available in the Cache page.
- Click the Force Quit button in the upper-left corner of the Activity Monitor window (or use the Touch Bar).
- Choose one of the following options:
- Quit: This is the same as choosing File > Quit within an app. The process quits when it’s safe to do so. If quitting the process could cause data loss or interfere with another app, the process doesn’t quit.
- Force Quit: The process quits immediately. If the process has files open, you may lose data. If the process is used by other apps or processes, those apps or processes could experience problems.To see if a process is used by another process, choose View > All Processes, Hierarchically.
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To send a signal to a process, select it in the process list, choose View > Send Signal to Process, choose a signal from the pop-up menu, then click Send.