{"id":136199,"date":"2026-10-14T10:26:56","date_gmt":"2026-10-14T01:26:56","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=136199"},"modified":"2026-10-14T10:26:56","modified_gmt":"2026-10-14T01:26:56","slug":"windows-11-kb5127648","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/windows-11-kb5127648\/","title":{"rendered":"Windows 11\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0KB5127648\u304c\u516c\u958b - 2026\u5e7410\u6708\u306e\u6708\u4f8b\u66f4\u65b0\u3002\u30a8\u30af\u30b9\u30d7\u30ed\u30fc\u30e9\u30fc\u306e\u30af\u30e9\u30c3\u30b7\u30e5\u554f\u984c\u306e\u4fee\u6b63\u306a\u3069"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2026\/10\/s_20261014-_101304-1.webp\" alt=\"\" width=\"1195\" height=\"746\" class=\"aligncenter size-full wp-image-136201\" \/><\/p>\n<p>Microsoft\u306f10\u670813\u65e5(\u73fe\u5730\u6642\u9593)\u3001\u6bce\u6708\u7c73\u56fd\u6642\u9593\u306e\u7b2c2\u706b\u66dc\u65e5\u306b\u63d0\u4f9b\u3057\u3066\u3044\u308b\u6708\u4f8b\u66f4\u65b0\u306e\u4e00\u74b0\u3068\u3057\u3066\u3001Windows 11 Version 26H2\/25H2\/24H2\u7528\u306e\u7d2f\u7a4d\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<a href=\"https:\/\/support.microsoft.com\/en-us\/servicing\/os\/windows-11\/2026\/10\/kb5127648-windows-11-24h2-25h2-26h2-security-update\">KB5127648<\/a>\u3092\u30ea\u30ea\u30fc\u30b9\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u4e3b\u306b\u30b7\u30b9\u30c6\u30e0\u306e\u54c1\u8cea\u3092\u6539\u5584\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u554f\u984c\u3092\u4fee\u6b63\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u81ea\u52d5\u7684\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u307e\u3059\u304c\u3001Windows Update\u307e\u305f\u306fMicrosoft Update Catalog\u3092\u5229\u7528\u3057\u3066\u624b\u52d5\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u5909\u66f4\u70b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059(\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u5185\u5bb9\u306f<a href=\"https:\/\/www.microsoft.com\/en-us\/msrc\/blog\/category?cat=Japan%20Security%20Team\">\u65e5\u672cMicrosoft\u306e\u30d6\u30ed\u30b0<\/a>\u3067\u53c2\u7167\u3067\u304d\u307e\u3059)\u3002<\/p>\n<h2>October 13, 2026\u2014KB5127648 (OS Builds 26300.9711, 26200.9711 and 26100.9711)<\/h2>\n<p>Windows 11 Version 26H2\/25H2\/24H2\u7528\u306e\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0<a href=\"https:\/\/support.microsoft.com\/en-us\/servicing\/os\/windows-11\/2026\/10\/kb5127648-windows-11-24h2-25h2-26h2-security-update\">KB5127648<\/a>\u3067\u306f\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30fc\u30e9\u30fc\u304c\u30af\u30e9\u30c3\u30b7\u30e5\u3057\u305f\u308a\u753b\u9762\u304c\u771f\u3063\u9ed2\u306b\u306a\u308b\u554f\u984c\u306e\u4fee\u6b63\u3001\u4e00\u90e8\u30a2\u30d7\u30ea\u3067AC-3\u97f3\u58f0\u306e\u518d\u751f\u304c\u6b63\u5e38\u306b\u884c\u3048\u306a\u3044\u554f\u984c\u306e\u4fee\u6b63\u3001Always On VPN\u306e\u63a5\u7d9a\u5931\u6557\u306e\u4fee\u6b63\u3001\u5370\u5237\u4e0d\u5177\u5408\u306e\u4fee\u6b63\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u4e0d\u5177\u5408\u304c\u4fee\u6b63\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30ea\u30ea\u30fc\u30b9\u30ce\u30fc\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<h3>\u6539\u826f\u3068\u4fee\u6b63<\/h3>\n<blockquote>\n<ul>\n<li>\n<p><strong>[Security updates]<\/strong> This update provides security improvements. For more information about the security vulnerabilities resolved by this update, see the <a href=\"https:\/\/msrc.microsoft.com\/update-guide\/releaseNote\/2026-Oct\">Security Update Guide<\/a>.<\/p>\n<\/li>\n<li>\n<p><strong>[Secure Boot]<\/strong> This update continues the deployment of updated Secure Boot certificates using the latest high-confidence targeting data to identify eligible devices that are ready to automatically receive the new certificates. Deployment through Windows Update remains ongoing across supported devices.<\/p>\n<\/li>\n<li>\n<p><strong>[Windows Explorer (Known issue)] Fixed<\/strong> This update fixes an issue that affects Windows Explorer in multi-user environments, such as Azure Virtual Desktop and FSLogix. After sign-in, Explorer.exe might fail to start or repeatedly crash, causing a black screen.<\/p>\n<\/li>\n<li>\n<p><strong>[Audio (known issue)] Fixed<\/strong> This update fixes an issue that affects AC-3 audio playback in some applications.<\/p>\n<\/li>\n<li>\n<p><strong>[Always On VPN]<\/strong> This update fixes an issue that affects Always On VPN connections after installing KB5124008. When automatic protocol selection or protocol fallback was configured, affected VPN connections could remain stuck in a Connecting state or fail to connect after an initial connection attempt failed. In some cases, subsequent connection attempts could display the error, \"The specified port is already in use.\"<\/p>\n<\/li>\n<li>\n<p><strong>[Storage Spaces]<\/strong> This update fixes an issue that affects tiered Storage Spaces Direct virtual disks. Some virtual disks might fail to come online after installing certain security updates, making dependent clustered workloads unavailable.<\/p>\n<\/li>\n<li>\n<p><strong>[Date and Time]<\/strong> This update introduces the new (UTC-05:00) Manitoba time zone to support Manitoba\u2019s November 1, 2026, time zone change.<\/p>\n<\/li>\n<li>\n<p><strong>[ReFS security]<\/strong> This update adds auditing and optional policy controls for <a href=\"https:\/\/learn.microsoft.com\/windows-server\/storage\/refs\/refs-overview\">ReFS<\/a> volumes on externally attached storage devices. Auditing is enabled by default, while enforcement controls remain disabled by default to give administrators time to evaluate and prepare for future security hardening changes. To learn more, see <a href=\"https:\/\/support.microsoft.com\/en-us\/help\/5130741\">KB5130741<\/a>.<\/p>\n<\/li>\n<li>\n<p><strong>[Printing]<\/strong> This update resolves an issue where printing could fail in some applications and on devices using RAW or Generic Text Only printer drivers after installing the August 2026 security update.<\/p>\n<\/li>\n<li>\n<p><strong>[Gaming]<\/strong> This update fixes an issue that could cause mouse input to stutter in some games.<\/p>\n<\/li>\n<li>\n<p><strong>[Windows Hello]<\/strong> This update fixes an issue where fingerprint sign-in might not work after a cold boot on some devices.<\/p>\n<\/li>\n<\/ul>\n<\/blockquote>\n<h3>\u65e2\u77e5\u306e\u4e0d\u5177\u5408<\/h3>\n<p>\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u306f\u4ee5\u4e0b\u306e1\u4ef6\u306e\u65e2\u77e5\u306e\u4e0d\u5177\u5408\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<blockquote>\n<div class=\"wki-box\">\n<div class=\"wki\">\n<div class=\"wki-title\">USB audio devices might fail to start or produce no sound<\/div>\n<div class=\"wki-content\">\n<div class=\"wki-desc\">\n<p><strong>Symptoms<\/strong><\/p>\n<p>After installing the September 8, 2026, Windows security update (KB5124012), some <a href=\"https:\/\/learn.microsoft.com\/windows-hardware\/drivers\/audio\/usb-audio-class-system-driver--usbaudio-sys-\">USB Audio Class 1.0 devices<\/a> might fail to start or produce audio. Affected devices might experience one or more of the following symptoms:<\/p>\n<ul>\n<li>\n<p>The device displays an error in Device Manager: \"This device cannot start (Code 10).\u201d<\/p>\n<\/li>\n<li>\n<p>No audio output.<\/p>\n<\/li>\n<li>\n<p>Volume controls are unresponsive or remain at zero.<\/p>\n<\/li>\n<li>\n<p>Sound settings are unresponsive or unavailable.<\/p>\n<\/li>\n<\/ul>\n<p>Some devices might function in standard stereo configurations but fail when using multichannel audio features, including 8-channel or 3D audio modes. Some customers have reported that they're able to restore audio in these cases by switching to 2-channel mode.<\/p>\n<p>This issue is limited to USB Audio Class 1.0 devices.<\/p>\n<p><strong>Resolution<\/strong><\/p>\n<p>This issue is partially resolved in the out-of-band (OOB) update released on September 14, 2026, <a href=\"https:\/\/support.microsoft.com\/en-us\/help\/5129195\">(KB5129195)<\/a>. This OOB update resolves the symptoms experienced on devices using 8-channel or 3D audio modes. Microsoft is working to address the other symptoms and will provide more information when it is available.<\/p>\n<p>IT administrators who need an immediate workaround for the symptoms not addressed yet by the OOB update should contact <a href=\"https:\/\/support.microsoft.com\/en-us\/support-for-business\">Microsoft Support for Business<\/a> for assistance.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/blockquote>\n<p>\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306fWindows Update\u306e\u4ed6\u3001<a href=\"https:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=KB5127648\">Microsoft Update Catalog<\/a>\u3001Windows Server Update Services(WSUS)\u3092\u5229\u7528\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft\u306f10\u670813\u65e5(\u73fe\u5730\u6642\u9593)\u3001\u6bce\u6708\u7c73\u56fd\u6642\u9593\u306e\u7b2c2\u706b\u66dc\u65e5\u306b\u63d0\u4f9b\u3057\u3066\u3044\u308b\u6708\u4f8b\u66f4\u65b0\u306e\u4e00\u74b0\u3068\u3057\u3066\u3001Windows 11 Version 26H2\/25H2\/24H2\u7528\u306e\u7d2f\u7a4d\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8KB5127648\u3092\u30ea\u30ea\u30fc\u30b9 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":136201,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[3],"tags":[4315,3298,4387],"class_list":["post-136199","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows","tag-kb","tag-windows","tag-windows11"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/136199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=136199"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/136199\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/136201"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=136199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=136199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=136199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}