Windows error 0xC0000374 is a heap corruption error - the operating system detected that application memory was written to in an invalid way. In gaming contexts it typically surfaces from a driver conflict, corrupted game files, faulty RAM, or an unstable memory overclock. Games expose marginal instability that lighter workloads would never trigger, making this error disproportionately common during gaming sessions.

Quick Answer

Windows error 0xC0000374 during gaming is usually fixed by reverting RAM overclocks, running DISM and SFC system file repair, updating GPU drivers cleanly, and verifying game file integrity.

🔧 Step 1: Check Your RAM and Overclocks

The most common cause is unstable memory. If you've enabled XMP, EXPO, or manually overclocked your RAM, rule this out first:

  • Enter BIOS and temporarily disable XMP/EXPO, setting RAM to its base JEDEC speed (DDR5-4800 or DDR4-2133)
  • Reproduce the gaming session that previously crashed
  • If the crash stops, your XMP profile is the culprit - try a lower XMP tier if available, or reduce memory frequency manually

If you've applied CPU overclocks or AMD PBO tuning, revert to stock settings as a test. Unstable CPU-to-memory controller voltages produce heap corruption errors identical in appearance to RAM faults.

💡 Step 2: Repair Windows System Files

Corrupted Windows system files can cause 0xC0000374 independently of hardware. Open Command Prompt as Administrator and run:

DISM /Online /Cleanup-Image /RestoreHealth

Wait for completion, then run:

sfc /scannow

SFC scans protected OS files and replaces corrupted entries with healthy cached copies. Restart after both complete and retest in-game.

🎮 Step 3: Update GPU Drivers and Verify Game Files

Outdated or corrupted GPU drivers are a significant source of heap corruption in gaming. Perform a clean driver install: download the latest driver from AMD or NVIDIA, use Display Driver Uninstaller (DDU) in Safe Mode to fully remove the existing driver, then install fresh. A clean install removes residual files that conflict with newer versions.

Additionally, verify your game's file integrity through its launcher. Corrupted executables or shader caches trigger 0xC0000374 in specific scenes or loading transitions. If crashes persist after all three steps, run Windows Memory Diagnostic (search "mdsched" in Start) or MemTest86 to rule out a physically faulty memory module.

FAQ

Q: Can a failing SSD cause 0xC0000374? A: Indirectly, yes. If the game or Windows files are on a drive with bad sectors, file corruption can manifest as heap errors at runtime. Run CrystalDiskInfo to check SSD health.

Q: Does 0xC0000374 mean my RAM is broken? A: Not necessarily. More often it indicates instability from an aggressive XMP profile rather than physical failure. Revert to stock speeds first - only consider replacement if errors persist at JEDEC speeds.

Q: Why does this error only appear in specific games? A: Memory-intensive games with large open worlds stress the memory subsystem more than casual applications. A marginal RAM overclock invisible in desktop use may only fail under sustained gaming loads.

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