Mac Keeps Crashing After Tahoe Update: How to Fix

macOS Tahoe (26) has caused system crashes and freezes for some users after installation — including repeated "Your system has run out of application memory" prompts. This guide covers the most common causes and effective fixes to restore your Mac's stability.

Part 1. Common Reasons Mac Keeps Crashing After Tahoe Update

Several factors can cause crashes after upgrading to macOS Tahoe. Match your symptom to the likely cause:

More related: What to Do When macOS Installation Couldn't Be Completed.

Part 2. Mac Keeps Crashing After Tahoe Update | Quick Fixes

Having learned the main cause of the system crash after the update, let us now have a look at the effective solutions to fix this issue.

1. Update Your macOS

If you have installed the beta version of macOS 26 Tahoe on your device, update the system to the public release to fix system crashes. Apple frequently releases incremental updates to fix bugs in major releases — the 26.3.1 patch specifically fixed crashes, memory leaks, Time Machine, Spotlight, and Wi-Fi issues. Upgrading from the beta version to the public release may potentially fix the system-crashing issue. To learn how to update the system on your Mac, follow the steps mentioned next:

Head to the "System Settings" on your device, enable the "General" section, and press the "Software Update" option.

Here, locate the latest update available by applying and clicking on the "Upgrade Now" button to begin the software update process.

2. Run Diagnostics

Another way to resolve the mac keeps crashing after tahoe update issue is by running diagnostics on your Mac. By running these diagnostics, users can differentiate whether crashes stem from hardware faults or software conflicts. Importantly, it runs independently of the operating system and requires minimal user interaction.

Apple silicon: Shut down, remove all peripherals, press and hold the power button until startup options appear, then release it, and hold Command + D until Diagnostics launches. Intel Mac: turn on the Mac and immediately hold D (or Option + D if that does not work). Follow the on-screen prompts, then note any error codes for further troubleshooting or Apple Support.

3. Reset NVRAM and SMC

Resetting NVRAM and SMC are effective troubleshooting methods for resolving Mac stability issues after an update like macOS 26 Tahoe. Doing so clears potentially corrupted preferences that can cause unexpected behavior.

Important: NVRAM/SMC manual resets apply only to Intel Macs. Apple silicon Macs reset NVRAM/SMC automatically at every restart — just restart your Mac instead.

Resetting NVRAM (Intel only): Shut down, then power on while holding Option + Command + P + R. Hold until the Mac restarts a second time (or the Apple logo appears and disappears twice), then release.

Resetting SMC (Intel only): Shut down, then press and hold Shift + Control + Option and the power button for about 10 seconds. Release, then press the power button again to turn on your Mac.

4. Reinstall or Downgrade the Tahoe Update

Another crucial troubleshooting technique to use when a crash continues is to reinstall or downgrade the macOS Tahoe update. Reinstallation is a process of updating the system software by reinstalling macOS Tahoe. Alternatively, this problem can also be solved by downgrading to an older version of macOS, say, macOS Sequoia. The following are the steps that you can follow to carry out the reinstallation and downgrading of the operating system:

Reinstall Tahoe Update

Turn off your MacBook, then press and hold the "Power" button until you see the "Startup Options" screen. Here, pick the "Options" choice and hit the "Continue" button under it.

Pick the "Reinstall macOS Tahoe" option and hit the "Continue" button.

Downgrade Tahoe Update to Sequoia

Start the process by installing a new installer like Sequoia on your macOS device. Navigate to the Disk Utility and "Erase" the external USB Drive.

Jump to the Terminal app and run:

sudo /Applications/Install\ macOS\ Sequoia.app/Contents/Resources/createinstallmedia --volume /Volumes/boot

Note: This command requires your admin password, erases the target USB drive completely, and needs a USB drive with at least 14–16 GB of space. Double-check that /Volumes/boot is the correct drive before running it.

Press and hold the power button and choose the "Options" choice from the Startup options.

Here, choose the "Disk Utility" option and hit the "Continue" button to move to the next step.

Choose the Mac internal drive and click on the "Erase" option from the top bar. From the pop-up dialog box, click on the "Erase Volume Group" option and shut down the MacBook once this is done.

Finally, press and hold the power button to pick the "Options" choice from the "Startup" options button to choose the "Reinstall macOS Sequoia" option and hit the "Continue" option.

5. Free Up Memory and Disk Space

A Mac that keeps crashing following the Tahoe update can be helped by clearing memory and disk space to make the operations steady. This enables us to remove massive files, clear up caches, and maintain heavy storage applications. Nevertheless, users need to make a backup before undertaking this process, as it will erase files. The following are the instructions for clearing space after the mac keeps crashing:

Access the "System Settings" on your MacBook by locating the option from the drop-down menu under the "Apple" icon at the top left corner.

Here, click on the "General" option in the left sidebar and navigate to the "Storage" option.

Under the "Recommendations" section, optimize the storage and delete the unused large files to free up memory and disk space on your Mac.

6. Force Quit Problematic Apps and Uninstall

Following the tahoe update, there may be problematic applications that lead to the Mac crashing. The simplest way to work this out is to force-quit the problematic applications or uninstall the ones not in use. This will assist you in reducing the load of the system, removing the conflicts with macOS, and making it functional. Follow the guide below and figure out how to eliminate problematic apps:

Click on the "Apple" icon in the left corner of your screen and choose the "Force Quit" option from the list.

Choose an app from the pop-up dialog box of "Force Quit Applications" and hit the "Force Quit" button.

Finally, confirm that you want to force the selected app to quit by clicking the "Force Quit" button.

7. Run In Safe Mode

Safe Mode is an effective troubleshooting tool that has the ability to load only the necessary system processes and turn off third-party extensions and caches. This will help you identify the software conflicts, balance macOS, and needle out the corrupt files. Once you boot into Safe Mode, you will be able to isolate the issue and avoid constant Mac crashes.

Apple silicon: Press and hold the power button until "Loading Startup Options" appears, select Macintosh HD, hold Shift, and click Continue in Safe Mode. Intel Mac: turn on or restart the Mac and immediately hold Shift until the login window appears (you may need to log in twice).

8. Check for Malware & Viruses

It is also possible that the mac keeps crashing after tahoe update due to some malware or viruses wreaking havoc. The cure for this is to run a reputable antivirus or malware scanner. The critical aspect is to identify and eliminate malicious software that disrupts the stability of the system. Removing bad software can help you achieve good performance, avoid slowdowns, and prevent overheating of your Mac.

9. Use a Bootable macOS Installer (Advanced)

A more advanced fix to crashes after the tahoe update is to install a bootable macOS installer from the Mac App Store, like the macOS Sequoia. This process will reformat macOS using a clean source and will avoid damaged files or unsuccessful updates. It offers a new, stable operating system that does not depend on existing installations.

Pro Tip. Restore Lost Data and Repair Files with Recoverit - Your Crash-Proof Safety Net

If you have lost your important data while upgrading your operating system to Tahoe, you can use data recovery tools such as Recoverit. This advanced tool provides a 99.5% recovery rate of lost and damaged data on different devices. The tool runs a deep scan within your device's storage to detect and retrieve all the recoverable files.

Moreover, you can search for a specific scanned file using the intuitive interface of the tool and recover it instantly. It allows applying various filters to narrow down your search and find the file instantly. This comprehensive tool also helps users to preview the recovered file within its interface before saving it to their device.

Coherent Features of Recoverit

Guide to Recover Lost Files Using Recoverit on Mac

After learning about this efficient tool in detail, let us check out the guide on how to recover lost data files using this comprehensive tool:

Step 1. Locate the Storage Device Within Recoverit
Begin by identifying the storage device you want to recover from on Recoverit's main screen. The software will immediately start scanning the chosen device.

Step 2. Choose Files to Recover
After the scan completes, browse through the recovered files and select the ones you wish to restore by clicking on them. Then, press the "Recover" button to begin retrieving these files.

Step 3. Preview and Save Recovered Items
Once files are recovered, preview them directly within Recoverit. Finally, click "Recover" once more to save the restored files safely to your desired location on your Mac.

Video Tutorial on How to Recover Lost Files After a macOS Update

More Solutions of macOS 27:

• External Boot Drive Not Showing After macOS 27 Golden Gate? Diagnose It Before You Erase Anything
• Files Missing After macOS 27 Golden Gate Update? Find and Recover Them Safely
• How to Recover Data After a macOS 27 Golden Gate Upgrade

Conclusion

In conclusion, this article looks into the common reasons that the Mac keeps crashing after the tahoe update. We discussed the top quick fixes to apply and resolve the crashing issues, allowing you to resume your workflow. Along with each fix, there is a detailed guide that you can follow for your own ease.

Moreover, we have provided you with a bonus tip on what to do in case your Mac data is lost due to a crash. We have recommended Recoverit, one of the most widely used recovery tools, as a safe and reliable option.