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0x00000028BSODCritical

0x00000028 — Corrupt Access Token | Blue Screen Fix Guide

CORRUPT_ACCESS_TOKEN

Windows XPWindows VistaWindows 7Windows 8Windows 10Windows 11

What Does 0x00000028 Mean?

A security access token was found to be corrupt, indicating a security subsystem error.

Real-World Causes

  1. 1Memory corruption affecting security tokens
  2. 2Security software conflict
  3. 3Kernel security bug

Symptoms

  • ⚠Blue screen with stop code CORRUPT_ACCESS_TOKEN
  • ⚠System reboots unexpectedly
  • ⚠Possible data loss from unsaved work

DIY Fix

Beginner-friendly steps you can try at home

  1. 1Restart your computer
  2. 2Run full antivirus scan
  3. 3Run System File Checker (sfc /scannow)
  4. 4Check Windows Update

Advanced Fix

For experienced users and IT professionals

  1. 1Analyze minidump for security subsystem failure
  2. 2Check security event logs
  3. 3Verify system file integrity with DISM
  4. 4Review Group Policy and security settings

Frequently Asked Questions

What causes CORRUPT_ACCESS_TOKEN?
A security access token was found to be corrupt, indicating a security subsystem error.
Can I fix Corrupt Access Token myself?
In many cases yes. Start with basic troubleshooting like restarting, updating drivers, and running System File Checker. If the issue persists, advanced analysis of crash dumps may be needed.

Related Error Codes

0x00000029Security System0x00000028Corrupt Access Token

About the Author

Windows Troubleshooting Team

Verified against official Microsoft documentation and real-world diagnostic data. Error behavior confirmed across Windows 10, Windows 11, and Windows Server.