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Patch Tuesday

Windows 11 KB5068861 (November 2025 Update): What It Is, What’s New, and How to Install It Safely

Have you just seen a Windows Update called: “2025-11 Security Update (KB5068861) (26200.7171)” and wondered: This guide walks […]

Are you seeing a Windows Update called: “2025-11 Cumulative Update for Windows 11 Version 23H2/22H2 (KB5068865)” and wonderin […]

What is error 0x800705b9? You typically see “Install error – 0x800705b9” while applying a cumulative or preview update. Repor […]

はじめに（今月の全体像） Windows 10：最後の定例パッチ KB5066791（OS Build 19045.6456/19044.6456） Windows 11：KB5066835（25H2 / 26100 & 26200系）とKB […]

Introduction — Why this matters KB5066791 is the final monthly Patch Tuesday security update for Windows 10. After installing […]

— Windows 10’s “last” free update, plus what to expect on Windows 11 24H2/25H2 Why this month matters October’s Patch Tuesday […]

What it is: Windows 11, version 25H2 is a light-weight feature update delivered by an enablement package (eKB) for devices al […]

2025年9月の月例更新（Patch Tuesday）は日本時間の9月10日に配信済みです。本記事では、8月更新後に話題になった「SSDが消える？」報告の整理と、9月更新（例：Windows 11 24H2 向け KB5065426）適用時の安全対 […]

Introduction The second Tuesday of every month—known as Patch Tuesday—is when Microsoft rolls out its monthly batch of cumula […]

2025年8月第4週のWindows & PCニュースをまとめてお届けします。今週は、Windows 10サポート終了を見据えたPC刷新の動きや、Windows 11 Proライセンスの特価キャンペーンが注目を集めました。さらに、AI時代を […]