We all want our Macs to run fast and hate it if the machine keeps freezing (or completely frozen, sometimes). When that happens, frustration sets in.

In this article, we’re going to share some common Mac freezing scenarios, along with quick fixes.

For better reading experience, we break down the scenarios into five sections. Just navigate the Table of Content below to help yourself jump to the right section based on the scenario that fits your situation.

Why Does My Mac Keep Freezing?​

A MacBook or iMac can freeze while running certain apps with a symptom being unresponsive. Other times, macOS may hang up while you surf the Internet via a web browser like Safari, Chrome, Firefox, etc.

Add me to the list of recent purchasers of 2018 13” MBP with freezing issues (4 in the last 2 days). Usually using Safari at the time. No heavy duty gaming or video editing. Only cold reboot gets me out of it. This can’t be sloughed offf as a quirk of one individual’s machine. Sep 02, 2009 Cursor freezing at random. Some users have experienced a longstanding issue in which the cursor freezes on the screen, seemingly at random intervals. The problem generally forces a system restart. Some users have experienced a longstanding issue in which the cursor freezes on the screen, seemingly at random intervals. According to user reports, Macbook Pro Retina freezes or stops responding all of a sudden, even when the device has enough memory to handle all applications. The screen just stops responding, along with the keyboard, trackpad, and the mouse. For some users, their Mac freezes right after startup or login. They can’t do anything else because the device stops responding 10 to 15 seconds right after startup. Mar 03, 2020 Often, MacBook freezes aren’t caused by certain applications, but from running too many programs at once. A computer’s RAM (Random Access Memory) is the working memory, and when that fills up, it needs to reach into the hard drive space to operate. Hey my friends. Once in awhile, it randomly freezes. My IT guys at work say to unplug the ram and plug it back in. Also to unplug the power cable going to the motherboard and then plug it back in. Since it could've moved or something during initial shipping. I've also been reading about disabling C-States in the Bios. Jul 31, 2011 Just got my 13' i5/128GB yesterday and have had at least 5 freezes in 1.5 days. I have done SMC and PRAM resets but continue to have random freezing. No beachball just frozen mouse/keyboard and if I close lid the display does not turn off. Will likely be calling support and/or taking it in to request replacement.

There are quite a few possible causes out there. For example, your Mac may have too many login items auto launching upon start-up, or lots of background app clutter.

What to do? The easiest fixes are: reduce the number of login items, force quit those frozen applications, update your Mac to latest macOS (i.e. Catalina), etc.

Your Mac may also run slowly, hang up, or become totally frozen when the computer runs out of memory and it has to use the disk instead of RAM.

You can use iStats Menus to check real-time memory usage and other key performance metrics of your Mac. It’s also an app we recommend for diagnosing Mac issues.

Read on for how to unfreeze your Mac under different scenarios.

1. Your Mac Freezes Randomly

If your Mac freezes from time to time even if it’s not running any third-party apps at all, or you feel there’s always a delay in responding on certain requests, it’s possible your Mac startup disk is almost full. Another reason could be System Management Controller (SMC) needs to reset, as Apple says:

“These symptoms might mean that an SMC reset is necessary: … your Mac performs unusually slowly, even though its CPU isn’t under an abnormally heavy load.”

How to fix: clean up disk drive, reset SMC

The best way to clean up Mac drive is to use CleanMyMac, an incredibly simple and intelligent app that can help you detect all type of system junk and unnecessary files. By doing so, you can quickly free up gigabytes of disk space.

Oct 19, 2019  If you use your Mac for these types of tasks, an external GPU (eGPU) might provide the extra power you need to drive external displays and get the job done. External Monitors and MacBooks apple.com. One of the best things you can do for your productivity is to add an external display to your MacBook (if it can handle it). Mac computer games for kids. You can use some computers that have a Mini DisplayPort or Thunderbolt port as an external display. You can view the contents of your Mac on the display of another Mac using Target Display Mode, a feature in OS X. Target Display Mode lets you use a Mac as the external display for another “primary” Mac. Dec 16, 2019  Make sure that your external display is turned on and connected to your Mac. Choose Apple menu System Preferences, then click Displays. Click the Arrangement tab. Make sure that the Mirror Displays checkbox isn’t selected. Jul 10, 2012  I want to connect a mac monitor to my PC. The monitor has a mini displayport connection, and I need to plug it in to a DVI or hdmi (either is fine). However, it appears that mini displayport female to hdmi/dvi male adapters are extremely hard to find and quite expensive ($100 range).

As for resetting SMC, just follow the step-by-step instructions from this Apple guide.

2. Mac Freezes When Open Certain Apps

It’s quite common that Mac freezes on certain apps, especially those poorly developed ones which require substantial system resources than they should.

macOS usually indicates the situation by popping up a notification Application Not Responding. This happens more often while you are using heavy apps like image or video editing software that demands more system resources than other light-weighted apps.

How to fix: force quit, and keep the app up to date

The first yet no-brainer solution is: keep waiting until the app unfreezes by itself. If it’s still unresponsive after a few minutes, try force quit the application. To do this, move your cursor to the application icon on the dock (normally located at the bottom of your screen). Then right click on the app icon. Wait until a pop-up menu displays. macOS will then present the option for you to “Quite.”

Alternatively, you can click on the Apple logo, select Force Quit, then highlight the app you want to exit, and hit the blue “Force Quit” button.

Next, check whether the app has a newer version. For example, if you are using Photoshop, go to Adobe’s official website to see if the version you’re using is the latest. Those of you who are used to download programs from the Mac App Store, you can also go to Software Update to check if there’s a new update.

Always keep your apps up-to-update because a newer version usually fixes bugs and errors that could eliminate app frozen times.

3. Web Browser Keeps Freezing on Mac

Gaming Mouse Randomly Freezes Mac And Cheese

According to Apple Support Community threads, some users have been experiencing difficulties with Safari after updating their Macs to the latest macOS, such as web browser crashes or keeps freezing.

How to fix: first remove the third-party extensions you recently installed. Because those plug-ins/extensions might be incompatible with the web browser you use. Open Safari, on the top click Safari Menu, select Preferences. Under the Extensions tab, select and uninstall the ones you recently installed.

If that doesn’t solve the problem, you’ll need to reset Safari. It’s also quite simple. This video tutorial shows how:

If the web browser continues to freeze, we’d recommend a full macOS check-up and update. Make sure to back up your data before you do this. Updating macOS is a fairly simple process. Simply click on the Apple logo, then App Store option, you’ll see the number of updates available.

Once updated, it should fix the browser keeps freezing issues and prevent your Mac from other issues in the future.

4. Mac Keeps Freezing on Startup

If your Mac often freezes upon startup, chances are you have excessive login items or launch agents. Those are applications, services, or server connections that run automatically when your Mac starts.

Another possible cause is the Non-Volatile Random-Access Memory (NVRAM) issue, as Apple puts in this article:

“…if your Mac starts up from a disk other than the one selected in Startup Disk preferences, or a question mark icon briefly appears before your Mac starts up, you might need to reset NVRAM.”

How to fix: optimize login items and reset NVRAM

Disabling unnecessary startup items is simple, just do a Spotlight search for “Users & Groups” (alternatively, click on the Apple icon, then System Preferences, click on Users & Groups). See the Login Items tab next to Password? Here you’ll find a list of applications and auto-start programs, feel free to remove those you rarely use.

Note: there may be some launch agents that do not show under Login Items, but they still run on startup. You can disable or remove them in CleanMyMac (via Extensions > Launch Agents, as shown below).

Resetting NVRAM is easy and risk-free. Simply shut down your Mac and press the four combination keys as shown in this video guide.

5. Mac Is Frozen Completely

If the entire system of your Mac frozen and you can’t even move the cursor around. Your last option is to force reboot the Mac manually.

If you are on a MacBook Pro or MacBook Air, hold down the Power button (located on the keyboard for newer MacBooks) for 5 seconds or so, until the system shuts down completely. Then press it again to start.

If you are on an iMac or Mac Mini, ​the Power button is on the back of the monitor. Similarly, press it for a few seconds and release it when your Mac shuts down.

Freezes

Final Words

It’s annoying to see Mac keeps freezing or frozen to death, and that happens from time to time. Reasons vary from case to case, while the common one is Mac uses up the RAM memory and has to opt for disk memory. But there are things you can do to fix the issue, though it depends on what kind of “freeze” you’re facing.

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One more thing: don’t forget to back up your Mac data on a regular basis. Because when your Mac is totally frozen you’ll have to force quit apps or reboot, during the process you may lose some files due to not being saved in time. A backup is the best protection plan for data disasters.

Gaming Mouse Randomly Freezes Machine

Have you managed to fix the Mac freezing issue? Or you happen to discover a new solution? Leave a comment and let us know.

Andreas is a freelance tech writer based in California. He works on a Mac in the office and lives with a PC and many old computer electronics at home. While he is not reading or writing, you’ll probably find him playing online games with friends.