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The KERNEL_MODE_HEAP_CORRUPTION blue screen, bug check 0x0000013A (often shortened to 0x13A), means Windows detected corruption in a kernel-mode heap. It identifies the kind of failure Windows detected—not the part that caused it. A device, driver, or software issue may be involved, and the code does not prove that your RAM is faulty.
Try these seven steps from low-risk checks to advanced diagnosis. They are ways to isolate the cause, not guaranteed fixes. Microsoft’s guidance is general stop-code advice for Windows 10 and Windows 11; it does not rank remedies or give a success rate specific to 0x13A. Microsoft’s stop-code troubleshooting guidance recommends starting with recent changes and basic recovery steps.
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What does KERNEL_MODE_HEAP_CORRUPTION 0x13A mean?
Microsoft defines bug check 0x0000013A as a case where the kernel-mode heap manager detected corruption in a heap. The bug check includes four parameters: a value describing the corruption type, a heap address, the address where corruption was detected, and a reserved value. Depending on the first parameter, the recorded pattern may point to issues such as a buffer overrun or underrun, use-after-free, double-free, or corrupted lists. Those are clues for diagnosis; they do not identify a particular driver or device by themselves. Microsoft’s 0x13A reference documents the code and its parameters.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchAn unexpected restart can involve hardware, a device driver, or software, according to Microsoft’s general guidance. Although Microsoft estimates that faulting drivers cause about three quarters of stop-code errors overall, that broad estimate is not specific to KERNEL_MODE_HEAP_CORRUPTION and cannot identify the cause on your PC. The bug-check documentation directs customers to general stop-code troubleshooting rather than naming a universal cause for 0x13A.
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1. Remove recently added hardware and retest
If the blue screens began after you connected or installed a device, shut down the PC and remove that device if it is safe and practical to do so. Restart and see whether the same stop code returns. If the crashes stop, the change is a useful lead, not proof that the device itself is defective: its driver, connection, or interaction with other software could also be involved.
Follow the computer or device manufacturer’s instructions before removing internal components. Avoid disconnecting hardware while the computer is powered on.
2. Use Safe Mode if Windows cannot start reliably
When normal startup repeatedly crashes, Safe Mode can provide a more stable environment for continuing the checks. Microsoft lists starting Windows in Safe Mode among its general stop-code troubleshooting steps. The route into Windows Recovery Environment can vary by Windows version and manufacturer; use the recovery instructions for your PC if Windows does not reach the sign-in screen.
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Once in Safe Mode, focus on changes you can reverse, such as reviewing a recently changed driver or uninstalling recently added software. Safe Mode is a troubleshooting environment, not a fix for the underlying fault.
3. Review Device Manager and recent driver changes
Check Device Manager for devices marked with an exclamation point, and consider whether the crashes started after a driver update or installation. Prioritize a flagged device or a recent change rather than changing unrelated drivers.
- Open Start, search for Device Manager, and open it.
- Expand relevant device categories and look for a warning icon.
- For a likely device, use its context menu to update the driver. If that does not help, Microsoft suggests disabling or uninstalling the device as a test.
- Restart and observe whether 0x13A recurs. If a test makes matters worse, restore the device or driver where possible.
Menu names can vary by Windows version and driver. Before uninstalling a device or driver, make sure you know how to restore it, especially if it is needed for network access or normal startup. Microsoft’s general stop-code guidance includes checking Device Manager and testing a problem device.
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4. Check free space on the Windows system drive
Make sure the drive containing Windows has room for swap files and other system and application functions. Microsoft gives 10% to 15% free space as a practical general guideline; the amount needed depends on the system configuration. This is a basic system check, not an established cause or specific remedy for 0x13A.
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5. Install available Windows updates
Microsoft’s stop-code guidance recommends checking for Windows updates. In Windows 11, open Settings > Windows Update; in Windows 10, open Settings > Update & Security > Windows Update. Select Check for updates, install applicable updates, and restart if prompted. Labels may differ slightly by release.
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After restarting, note whether the same stop code returns. An update is a sensible maintenance step, but Microsoft does not present it as a guaranteed 0x13A fix.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.6. Consider Windows recovery if basic checks fail
If crashes continue after the basic checks, consider System Restore or another Windows recovery option appropriate to your situation. Microsoft recommends recovery options when earlier stop-code troubleshooting has not resolved the problem. The right choice depends on what is available on your PC and when the problem began.
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Read the recovery option’s effects before proceeding. Back up important files if Windows still allows it, and follow the instructions for your Windows version. Recovery can change apps, settings, or files depending on the option; it should not be treated as a diagnosis of the cause.
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7. Capture and analyze crash data for recurring failures
If 0x13A keeps returning, the crash data and the circumstances around each crash can be more useful than guessing from the stop-code name. Microsoft documents collecting bug-check parameters through Event Viewer, a generated dump file, or a kernel debugger. Its 0x13A reference identifies the !analyze and !heap debugging extensions as useful tools.
- Record when the crash occurs and what changed shortly beforehand, such as a device, driver, update, or application.
- Keep the exact stop code and any displayed parameters, if available.
- Preserve crash dump files and share them with a qualified support professional if you are not experienced with Windows debugging.
Dump analysis is an advanced diagnostic route, not a repair in itself. The parameters describe the detected corruption pattern and location; interpreting them alongside a dump may help narrow the investigation.
When to use Driver Verifier
Driver Verifier is built into Windows and checks driver behavior, including how drivers use memory resources. It can deliberately trigger an exception when it detects driver execution errors, which may make a problem easier to investigate—but verification adds overhead and can lead to additional crashes. Microsoft advises verifying the smallest number of drivers possible.
Use it only if you are an advanced user or working with a support professional who can interpret the resulting crashes and help recover the system. It is a diagnostic tool, not a routine first step or a repair button. Do not enable every check for every driver as a general troubleshooting shortcut. Microsoft’s Driver Verifier documentation explains its role and cautions.
Quick Recap
Choose the next step by risk and evidence
- Start with a clear recent change: removing newly added hardware or checking a recently changed driver gives you a focused, reversible test.
- Use basic maintenance checks next: available disk space and Windows updates are low-risk checks, but neither is established as a specific 0x13A cause.
- Escalate when the crash repeats: recovery options and crash-dump analysis become more relevant when simpler checks do not resolve the problem.
- Do not infer a failed part from the code alone: replacing RAM or another component requires evidence beyond the stop-code name.
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