Windows⏱️ 2 min read📅 2026-05-29

How to Fix SYNCH_OBJECT_INACCESSIBLE Error – SYNCH_OBJECT_INACCESSIBLE BSOD Sync Object Inaccessible

Resolve Windows BSOD Sync Object Inaccessible error by following this step-by-step guide to fix the issue and prevent system crashes.

Quick Answer: Run the System File Checker tool and check for corrupted system files, then try booting in Safe Mode or performing a System Restore.

The BSOD Sync Object Inaccessible error is typically caused by corruption or damage to critical system files. To resolve this issue, follow these steps:

⚠️ Common Causes

  • Corrupted system files or registry entries
  • Malware infection

🛠️ 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: If SFC finds any corrupted files, restart your computer and run the tool again to ensure all issues are resolved.

💡 Conclusion

If the issue persists after running SFC, try booting your computer in Safe Mode or performing a System Restore to revert to a previous point when the error was not present. If none of these steps resolve the issue, further troubleshooting may be necessary.

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❓ Frequently Asked Questions