macOS Error -24 — 4 Ways to Fix Update Failed
📑 In This Guide
Is your macOS MacBook Pro showing error -24? You are not alone. The error code -24 indicates update failed, and it affects thousands of macOS users worldwide. The good news is that this error is usually fixable at home without calling a technician.
In this comprehensive guide, we will walk you through 4 proven methods to fix macOS error -24. We have organized these fixes from the simplest to the most advanced, so you can start with the easiest solution first. Most users can resolve this error in under 27 minutes.
What Is macOS Error -24?
Error -24 is a common macOS system error that indicates update failed. This error can appear on your system's control panel display or as a pop-up message on your computer screen.
When error -24 occurs, your system may stop working, flash warning lights, or display the error code. The root cause is typically related to failing hard drive. Understanding what triggers this error is the first step toward fixing it.
Error -24 can affect various macOS MacBook Pro models, both older and newer versions. If you are experiencing this error, do not worry — we have compiled all the necessary troubleshooting steps below to help you get your system back to正常工作.
Common Causes of -24
This error can be triggered by several factors. Understanding the root cause helps you choose the right fix.
- Failing hard drive.
- Permission corruption.
System Models Affected by -24
-24 has been reported on the following macOS system models:
| Device Series | Models | Common? | Easy Fix? |
|---|---|---|---|
| MacBook Pro | All MacBook Pro | ✅ Yes | ✅ Yes |
Error -24 on MacBook Pro running macOS Sonoma.
4 Proven Ways to Fix -24
Try these methods in order. Start with the easiest and most common solutions first.
Method 1: Restart Mac
Easy ⏱ 2 min-
1. Apple menu > Restart.
2. Wait for reboot.
3. Check error.
Method 2: Reset NVRAM
Easy ⏱ 3 min-
1. Shut down.
2. Press Option+Cmd+P+R on boot.
3. Hold 20 sec.
4. Release.
Method 3: Reset SMC
Medium ⏱ 5 min-
1. Shut down.
2. Hold Shift+Ctrl+Option+Power 10s.
3. Release.
4. Power on.
Method 4: Run Disk Utility
Medium ⏱ 10 min-
1. Open Disk Utility.
2. Select startup disk.
3. Run First Aid.
4. Restart.
If none of the methods resolve error -24, it is time to call macOS customer service. Have your system model and serial number ready.
Frequently Asked Questions (FAQs)
Error -24 on macOS systems indicates update failed. This means the system has detected an issue that prevents normal operation.
Follow the step-by-step methods in this guide. Start with a power cycle, then check the update failed, and proceed with the remaining fixes in order.
Yes, most macOS error -24 cases can be resolved at home using the methods in this guide. Professional help is rarely needed.
If the fix is software or connection related, it is free. If a replacement part is needed, costs vary from $15 for cartridges to $150 for hardware repairs.
Hardware defects causing error -24 are typically covered under macOS's standard warranty. Consumables like ink and toner are not covered.
Conclusion
macOS error -24 can be frustrating, but as you have seen, there are 4 effective ways to resolve it. In most cases, starting with a simple power cycle or checking your cartridges will solve the problem quickly.
If you have tried all the methods above and the error -24 persists, it may be time to contact macOS support for professional assistance. Remember to keep your system's firmware updated and use genuine supplies to prevent future errors.
Remember: power cycle first, check connections second, and update firmware third. Error -24 can be resolved step by step.