Microsoft、2025年11月の「Windows Update」を実施 ～Windows 10 ESUに初めてのパッチ（窓の杜）
米Microsoftは11月11日（現地時間）、すべてのサポート中バージョンのWindowsに対し、月例のセキュリティ更新プログラムをリリースした（パッチチューズデー）。現在、「Windows U
news.yahoo.co.jpHere are the latest Windows Update news I can share right now.
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Summary: Microsoft releases monthly security and bug-fix updates on Patch Tuesday; in 2025–2026 there were multiple updates across Windows 10/11, with some months highlighting significant fixes and notable advisories for specific editions. If you’re asking “いつ” (when) in Japanese, the standard cadence is the second Tuesday of each month (US time), with Japanese timing typically reflecting that on the following calendar day in Japan. For instance, the June 2025 Patch Tuesday was reported as released on June 11, 2025 JST by coverage noting the US schedule and subsequent Japanese timing.[1][2][3]
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Notable points from recent coverage:
- June 2025 update included fixes for dozens of vulnerabilities and a critical Office issue was flagged in some reports.[1]
- November 2025 update coverage noted ongoing Patch Tuesday releases across supported Windows versions, with peripherals like Windows 11 23H2/24H2 receiving updates and Windows 11 25H2 highlighted in previews and rollups.[2][3]
- January 2026 coverage mentioned an out-of-band (OOB) update addressing Outlook-related crashes and other January 2026 Patch Tuesday fixes in Windows 11 25H2/24H2 lines.[4]
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Practical tips if you’re managing updates:
- Check Windows Update in Settings (Windows Update → Check for updates) to confirm the latest monthly release for your edition (Windows 10/11) and to see any out-of-band fixes if applicable.[6]
- For enterprise or managed devices, consult the Windows Message Center for the official, up-to-date bulletin IDs (KBs) and affected products, as it’s the authoritative source for release health and known issues.[6]
- If you’re in Japan and want the exact JST release timing, expect updates to be available shortly after the US Patch Tuesday, often reflected on local news and Microsoft support pages within a day or two of the US release.[3][1]
Illustration: Example of monthly cadence and notable patch identifiers
- Patch Tuesday cadence: second Tuesday of every month (US) → updates appear in Windows Update[Windows Update Catalog] shortly after; for Japanese timing, expect release announcements and availability in JST on the following day or within 24 hours.[1][6]
- Example KBs frequently seen: KB for Windows 11 24H2/25H2 and Windows 10 22H2, plus accompanying Office-related advisories in some months.[2][3]
Would you like me to pull the exact latest month’s Patch Tuesday date for your specific Windows version (e.g., Windows 11 24H2 vs 25H2, or Windows 10 22H2) and list the top-priority fixes and KB numbers? I can tailor it to your device (home or business) and region. I can also guide you to the official Windows Message Center pages for the precise current advisories.