Sometimes, the default way that my Mac handles files is frustrating. Shuffling through multiple levels of Finder can be repetitive and exhausting. Sometimes, even straightforward tasks—like deleting files by dragging them to the trash—aren’t as simple as they might seem.
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If your Mac stops freezing then something you installed is broken under the new OS. The 3rd thing I would try is one of the OS 'cleaning' tools. I use Onyx (there are others, that's my favorite). Download it, and run the automation tool, then reboot your Mac. Let us know the results by editing your question to indicate what you have tried. No chance of getting. So plan for this and expect that it will freeze the system for that time. That is expected and described on the Onyx help screen. Someone is making Onyx available for free, probably working in his/her evenings and other free time, so all of us can have a tool which has been very, very valuable.
I know I’m not alone in feeling this way: there’s a whole range of secondary apps that address exactly this issue. Some are pretty simple and some are more complex, but they all pose the same question: Does your Mac work the way it should right out of the box?
Features of OnyX for Mac
I decided to try OnyX, a Mac cleaning utility and disk manager that helps you supervise and organize your disk. A little disclaimer before we get started: OnyX is NOT for beginners. It doesn’t make anything simple, fun, or pretty. Instead, it delivers a set of powerful, professional tools for gaining complete control of your Mac.
Here’s what it has to offer:
Some of OnyX’s tasks—especially those under the Utility and Maintenance tabs—can take a long time to complete, depending on the size and contents of your drive. Make sure that you don’t start one of these intensive tasks without having a couple of hours of computer downtime available.
What makes OnyX unique?
OnyX is unlike any other disk manager I’ve used. It doesn’t simply meet the user halfway; instead, it demands a high level of input and proficiency. Here’s what I noticed:
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One place the app is lacking is in automated features. A great deal of foresight and careful calibration are required to automate some necessary processes (like malware detection and other maintenance tasks), and even then, you might not catch everything you meant to. If you don’t have spare time to figure out all the settings, you may try more user-friendly solutions. For example, CleanMyMac X by MacPaw (love it or hate it) has automated cleanup tools and pretty impressive design.
Here’s what I mean:
If you like to play around with this app, download its free version here.
Is OnyX safe?
A disk manager can make a lot of changes to the deep structure of your Mac. It’s always a good idea to do your research and make sure that you trust the one you’re using. Look for an app with a long history of updates and a developer that’s been around for a while—that way, your computer is more likely to be in safe hands. OnyX was first released on Mac OS Jaguar in 2002, so it’s had some time to work out any kinks.
Another way to ensure that you won’t harm your computer is to use the version of OnyX that matches your current operating system. If you haven’t upgraded to Catalina yet, Titanium software (OnyX’s developer) has every past version of the app available for download on their website.
In inexperienced hands, a powerful tool like OnyX can do a lot of accidental damage. Unlike other disk analyzers, which often make suggestions or mark certain files as off-limits for deletion, OnyX’s commitment to control means that a casual user might end up deleting something important or changing settings to the point that their Mac becomes unusable. It’s important that if you plan on using a technically sophisticated tool like OnyX, you have the technical skills to use it safely.
If you’re worried about accidentally deleting important files, consider CleanMyMac X. Its Smart Scan feature helps you make informed decisions about what you can safely toss and what you shouldn’t mess with. It also gives you personalized cleanup tips based on how you use your Mac. Download the trial version here.
OnyX Review: The verdict
As I mentioned before, OnyX is a powerful Mac optimization utility. In the right hands, it’s got the power and flexibility to deliver great results. It doesn’t require much space and is incredibly stable. But if you’d like to go beyond just cleaning and tune your Mac in more ways, check out these 5 Onyx alternatives — hope you’ll pick the right tool for your needs.
Imagine this: you’re working happily on your Mac when the dreaded beach ball of death appears. A program stops responding or worse, the macOS (or OS X) itself refuses to do anything but stare at you, blankly. You have a frozen Mac app or an OS X freeze. Mac OS not responding can lead to lost productivity or even lost work. Let's go over why it happens, what to do when your Mac freezes or when an Mac OS app stops responding, as well as some tips for preventative maintenance.
We’ll go over frozen apps first, so if your whole Mac freezes, you can jump to the part about fixing a frozen Mac.
Fixing a frozen app: Why Mac OS apps freeze
There can be a few reasons why apps freeze on Mac. First, sometimes an app freezes on its own, and sometimes it takes down the whole Mac with it. Here's what could be happening:
What to do if an app freezes on your Mac
A frozen app becomes unresponsive and brings your work to a halt. In the worst case scenario, it can lead to lost work or a corrupted file. Fortunately, there are several options to try, and most are quite simple. Here’s what you can do when a program freezes on your Mac. First, you need to quit it. Then, if the app keeps freezing when you launch it, try the next options.
How to quit a frozen or unresponsive program
Quitting and then re-starting an app is a good way for Mac OS to handle a crash. You can do this from the OS X Dock or from the Force Quit window. To force-quit an app from the OS Dock, follow these simple steps:
That’s it. The app is instantly closed. Re-launch it and try again. If you prefer to work with the Dock hidden — or if the Dock itself is unresponsive — you can simply bring up the Force Quit dialog box to perform the same task.
Here’s how:
If you’re using a maintenance utility like CleanMyMac X, it has freezes covered. When CleanMyMac spots an unresponsive app, a notification window with a Quit button pops up, so you could force-quit the app without rummaging around in its menu.
CleanMyMac keeps an eye on other performance issues, too, so if you'd like to get alerts like this one when anything goes wrong, download CleanMyMac X for free and give it a try.
How to fix Mac apps that keep freezing
First, check what apps are running in the background and launch with the startup.
To do it go to Settings > Users and Groups > Login items. Uncheck anything you think might be causing trouble. In fact, just to be sure, uncheck every app and restart your Mac.
Now, find out which process or program is causing the problem. How to see what programs are running on Mac in general? You need launch Activity monitor.
How to find Activity Monitor on Mac: You can do it via the Spotlight Search or just open Launchpad and type it in. How to open Activity Monitor in Finder: launch it from Applications > Utilities folder > Activity Monitor.
When it opens, you'll probably see hundreds of processes in each tab, but the ones you need now are CPU and Memory tabs. Click on the % CPU sign to sort processes by their influence on your Mac's work. The heaviest ones will show up on the top. They could be your main issue, but don’t rush to deal with them. Some, like kernel, are important system processes and you shouldn’t mess with them.
How to kill a process on Mac OS
However, sometimes your problem does lie within a specific process, you can force quit it (Apple doesn't call it 'to kill a process on Mac', they make it sound fancy). But we're not at Apple HQ, so here's how to kill a Mac OS process:
Occasionally the problem isn’t with the Mac app, but with the Mac OS itself. If you’re experiencing troubles regularly, it’s time to ask why your Mac keeps freezing. There are several possible reasons, so let’s start with the simplest potential solution.
First, the file you were working with at the time of the freeze may be the issue. To help determine if this is true, try opening a different file with that app and work with it for a while. If it behaves normally, quit and then go back to the file you were working with at the time of the crash. If the errant behavior persists, you may have found your problem. Salvage what you can into a new file.
Make sure that your software and OS X are up-to-date. This is easy to do with software purchased from the Mac App Store. The same goes for OS X. Launch the Mac App Store on your Mac, and you’ll see the list of pending updates, including any for the OS X itself. For third-party software purchased outside of the App Store, visit the manufacturer’s website.
What to do if Mac OS X freezes
If you cannot force-quit a program, or if the Mac OS is completely unresponsive, it’s time for the most obvious action — a reboot.
You can bring up the Restart/Sleep/Shutdown dialog box instantly by hitting Control plus the Power button. Option four, Shut Down, is selected by default. Alternatively, you can press and hold the Power button for 1.5-2 seconds to bring up the same dialog box. If things aren’t hopelessly messed up, you’ll get a chance to save your work before your Mac shuts down. If that still doesn’t work, a more drastic option is available. How to force reboot a frozen Mac
Press Command ?, Control and Power (on earlier MacBook models, use the Media Eject key instead of the Power button) to restart your Mac immediately. Note that you won’t have the option of saving anything in this scenario, but it will definitely reboot your icy Mac.
Once your Mac has restarted, you might find that the hard restart has corrupted the file you were working on. Salvage what you can from it and create a new file.
How to fix a frozen Mac
After the reboot, ensure that your Mac has enough free hard drive space for the OS X, and enough free RAM to do what you want. CleanMyMac X can help you here, too. It removes all the useless files that take up space on your hard drive: app leftovers, mail attachments, cache files, and so on. That way, you can free up additional disk space for the OS X without deleting any of your own files. Plus, CleanMyMac X keeps tabs on how much RAM you’re using and lets you free some up with a tap.
Finally, if system cleanup also fails to fix the problem, you can try to run a clean install of your Mac OS. Just follow the instructions: How to clean install macOS Sierra 10.12
Note: If you don’t know which system your Mac runs, click the apple icon in the top left corner and choose About this Mac. You’ll see the name on the popup window.
That’s it, we hope this guide has helped you fix a frozen Mac. Remember, with day-to-day maintenance, your Mac can offer years of reliable work. On the rare occasion of a frozen program or even frozen OS X, these tips will help get you working and productive again. And software like CleanMyMac X can do some of the monitoring and maintenance for you, so you can focus on what needs to be done.
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December 2022
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