Closed a vulnerability where malicious files could leak local NTLM cryptographic hashes when viewed or previewed.
Follow up with sfc /scannow to scan and repair protected system files.
This update consolidates several performance fixes and zero-day threat patches into a single installation package. : Windows 11, Version 21H2. Architecture : x64-based (AMD64) systems. File Size : 350.5 MB. Classification : Security Update (Critical Severity). Key Features and Enhancements Closed a vulnerability where malicious files could leak
Addressed vulnerabilities across the Windows operating system, ensuring that x64 architectures were shielded from newly discovered exploit vectors.
: Updates foundational system files for x64 architecture to ensure compatibility with modern software. : Windows 11, Version 21H2
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
KB5031358 is the October 10, 2023 cumulative monthly security update (LCU) for Windows 11 (notably for version 21H2 builds like 22000.2538) for x64 (AMD64) systems. It is a combined package that includes a servicing stack update (SSU) and the latest cumulative fixes and security patches. The release focuses on security hardening, reliability improvements to the servicing stack, and a small set of functional adjustments (including HTTP/2 registry tuning). Some editions of 21H2 reached end of servicing on that date; the update was distributed via Windows Update, WSUS and the Microsoft Update Catalog (standalone ~350.5 MB for x64). Classification : Security Update (Critical Severity)
, is a critical security milestone. Notably, it served as the final update
Before Microsoft began deprecating WordPad entirely, this flaw leaked critical system memory parameters. Malicious files opened in WordPad could expose sensitive system hashes to external viewing.
Understanding the build parameters helps administrators cross-verify system patch status accurately. Windows 11, Version 21H2 Resulting OS Build: 22000.2538 Architecture Focus: x64 (AMD64) & ARM64 File Package Size: ~350.5 MB for x64 architecture Release Date: October 10, 2023 Classification: Critical Security Update Critical Fixes and Security Patches Introduced
If you are experiencing a specific error code or issue during installation, I can provide tailored solutions. Please tell me: The exact you see (e.g., 0x800f0988)