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KB5039302

Blue-themed digital graphic illustrating June 2025 Windows 11 Update issues. The image shows icons for CPU, storage delays, driver conflicts, and system errors, with bold text highlighting “Windows 11 Update Performance Problems” on a modern tech-style background.

2025-06-26

June 2025 Windows 11 Update — Multiple Errors Occurring on Some Devices: Full Troubleshooting Guide

Introduction The June 2025 Windows 11 updates have triggered a wave of unexpected errors for many users. While most updates i […]

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2025-06-19

KB5039302 Windows 11 Update Error – Symptoms, Causes, and Real Fixes

Introduction After the release of Windows 11 update KB5039302 in June 2025, many users have started reporting unexpected prob […]

June 2025 Windows 11 Update Errors summary graphic showing four issues: Error 0xc0000005, Update Installation Failure, Blue Screen of Death, and Performance Issues, with red warning icons on a blue and white background.

2025-06-26

June 2025 Windows 11 Update Errors – Complete Guide for Troubleshooting

Introduction The June 2025 Windows 11 updates have brought new features, security improvements, and refinements. However, sho […]

【WindowsエラーKB5039302】様々な不具合を発生させる原因とその対処法｜2025年6月最新版

2025-09-12

【WindowsエラーKB5039302】様々な不具合を発生させる原因とその対処法｜2025年9月最新版

はじめに 2025年9月の月例セキュリティ更新（Patch Tuesday）適用後、一部の環境で不具合報告が見られます。代表的な症状は以下のとおりです。本記事では、9月時点の最新情報をふまえ、原因の傾向と安全な対処手順を初心者でも迷わないように解 […]