Windows⏱️ 2 min read

How to Fix APC_INDEX_MISMATCH – BSOD APC Index Mismatch BSOD Error

Resolve Windows BSOD APC Index Mismatch error by identifying and fixing common causes such as driver issues or corrupted system files.


The APC Index Mismatch blue screen of death (BSOD) error is often caused by a mismatch between the expected and actual index values in the APC routine. To resolve this issue, you'll need to identify and fix the underlying cause.

⚠️ Common Causes

  • Corrupted system files or missing DLLs
  • Outdated or faulty drivers

🛠️ Step-by-Step Fixes

Method 1: Quick Fix

  1. Step 1: Run the System File Checker tool (SFC) to scan and repair corrupted system files. Open Command Prompt as an administrator, then type `sfc /scannow` and press Enter.
  2. Step 2: Update your drivers to the latest version using the Device Manager or a driver update tool like Driver Talent or Snappy Driver Installer.

💡 Conclusion

By following these steps, you should be able to resolve the APC Index Mismatch BSOD error and get your Windows system running smoothly again.

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