Microsoft Windows Error Code 0x00000139: How to Fix It

Q: What causes Windows error 0x00000139?

Error 0x00000139 is typically caused by corrupted drivers, faulty RAM, system file corruption, or malware infections that compromise kernel security checks. Recently installed hardware or software often triggers this error.

Q: Can I fix 0x00000139 without losing my files?

Yes, most repair methods preserve your personal files. System File Checker, driver updates, and System Restore maintain your documents and media. Only Windows Reset with 'Remove everything' option deletes personal files.

Q: How do I know if it's a hardware or software problem?

If the error occurs in Safe Mode, it's likely hardware-related (usually RAM). If Safe Mode works normally, the problem is typically software-related, such as corrupted drivers or system files.

Q: Should I replace my RAM if memory tests fail?

Yes, if Windows Memory Diagnostic or MemTest86 reveals RAM errors, replacing the faulty memory modules is necessary. Faulty RAM can cause data corruption and system instability beyond just this error.

Q: Will System Restore fix the 0x00000139 error?

System Restore can fix the error if it was caused by recent software changes, driver installations, or system updates. It's most effective when you can identify when the problem started and restore to a point before that.

Abstract

Windows Error Code 0x00000139 (KERNEL_SECURITY_CHECK_FAILURE) is a critical Blue Screen of Death (BSOD) that occurs when Windows detects corruption in essential system data structures. This error typically indicates problems with drivers, memory, or system files that compromise kernel security.