Windows Error 0xC000021A — 3 Ways to Fix Memory Error
📑 In This Guide
Is your Windows Windows 11 showing error 0xC000021A? You are not alone. The error code 0xC000021A indicates memory error, and it affects thousands of Windows 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 3 proven methods to fix Windows error 0xC000021A. 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 29 minutes.
What Is Windows Error 0xC000021A?
Error 0xC000021A is a common Windows system error that indicates memory error. This error can appear on your system's control panel display or as a pop-up message on your computer screen.
When error 0xC000021A occurs, your system may stop working, flash warning lights, or display the error code. The root cause is typically related to failed windows update. Understanding what triggers this error is the first step toward fixing it.
Error 0xC000021A can affect various Windows Windows 11 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 0xC000021A
This error can be triggered by several factors. Understanding the root cause helps you choose the right fix.
- Failed Windows update.
- Malware infection.
System Models Affected by 0xC000021A
0xC000021A has been reported on the following Windows system models:
| Device Series | Models | Common? | Easy Fix? |
|---|---|---|---|
| Windows 11 | All editions | ✅ Yes | ⚠️ Varies |
Error 0xC000021A can appear on any Windows version.
3 Proven Ways to Fix 0xC000021A
Try these methods in order. Start with the easiest and most common solutions first.
Method 1: System Restore
Easy ⏱ 10 min-
1. Type rstrui.
2. Choose restore point.
3. Restore.
Method 2: Run SFC Scan
Medium ⏱ 10 min-
1. Open CMD as Admin.
2. Type: sfc /scannow
3. Wait for scan.
4. Restart PC.
Method 3: Run DISM
Medium ⏱ 15 min-
1. Open CMD as Admin.
2. Type: DISM /Online /Cleanup-Image /RestoreHealth
3. Wait 15 min.
4. Restart.
If you have tried all methods above and error 0xC000021A persists, contact Windows support. They can run advanced diagnostics and arrange a repair if needed.
Frequently Asked Questions (FAQs)
Error 0xC000021A on Windows systems indicates memory error. 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 memory error, and proceed with the remaining fixes in order.
Yes, most Windows error 0xC000021A 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 0xC000021A are typically covered under Windows's standard warranty. Consumables like ink and toner are not covered.
Conclusion
Windows error 0xC000021A can be frustrating, but as you have seen, there are 3 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 0xC000021A persists, it may be time to contact Windows support for professional assistance. Remember to keep your system's firmware updated and use genuine supplies to prevent future errors.
Start with a power cycle for Windows error 0xC000021A. If that fails, check your connections and restart the system.