{"id":14560,"date":"2026-01-18T08:00:56","date_gmt":"2026-01-17T23:00:56","guid":{"rendered":"https:\/\/m365jp.net\/?p=14560"},"modified":"2026-01-18T08:01:07","modified_gmt":"2026-01-17T23:01:07","slug":"mc1218934-take-action-out-of-band-update-to-address-issues-observed-with-the-january-2026-windows-security-update","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-01-18-mc1218934-take-action-out-of-band-update-to-address-issues-observed-with-the-january-2026-windows-security-update","title":{"rendered":"MC1218934 | Take Action: Out-of-band update to address issues observed with the January 2026 Windows security update"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1218934 | Take Action: Out-of-band update to address issues observed with the January 2026 Windows security update<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>preventOrFixIssue<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>01\/17\/2026 22:22:14<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>01\/17\/2026 22:22:12<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>01\/17\/2027 22:22:12<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<div>Microsoft has identified issues upon installing the January 2026 Windows security update. To address these issues, an&nbsp;out-of-band (OOB) update&nbsp;was released today, January 17, 2026.<\/div>\n<div>  <\/div>\n<ul>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/status-windows-server-2025#3760msgdesc\" rel=\"noopener noreferrer\" target=\"_blank\">Connection and authentication failures in remote connection applications<\/a>: This issue affects multiple platforms   including Windows 11, version 25H2; Windows 10, version 22H2 ESU; and Windows Server 2025. See the bottom of this message for the complete list of affected products.<\/li>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/status-windows-11-23H2#3764msgdesc\" rel=\"noopener noreferrer\" target=\"_blank\">Devices with Secure Launch might fail to shut down or hibernate<\/a>: This issue only affects Windows 11, version 23H2.<\/li>\n<\/ul>\n<div>  <\/div>\n<div>The out-of-band (OOB) update&nbsp;was released today, January 17, 2026, in the <a href=\"https:\/\/catalog.update.microsoft.com\/\" rel=\"noopener noreferrer\" target=\"_blank\">  Microsoft Update Catalog<\/a>. If you have not yet deployed the January 2026 Windows security update and your IT environment includes the affected applications and features, we recommend applying this OOB update instead. For more information and installation   instructions, refer to the appropriate KB article for each affected version of Windows listed below. For additional guidance, see  <a href=\"https:\/\/learn.microsoft.com\/troubleshoot\/windows-client\/installing-updates-features-roles\/download-updates-drivers-hotfixes-windows-update-catalog#step-3-download-updates\" rel=\"noopener noreferrer\" target=\"_blank\">  How to download updates from the Microsoft Update Catalog<\/a>.<\/div>\n<div>  <\/div>\n<ul>\n<li>Windows 11, versions 25H2 and 24H2 (<a href=\"https:\/\/support.microsoft.com\/help\/5077744\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077744<\/a>)<\/li>\n<li>Windows 11, version 23H2 (<a href=\"https:\/\/support.microsoft.com\/help\/5077797\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077797<\/a>)<\/li>\n<li>Windows 10, version 22H2 ESU and Windows 10 Enterprise LTSC 2021 (<a href=\"https:\/\/support.microsoft.com\/help\/5077796\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077796<\/a>)<\/li>\n<li>Windows Server 2025 (<a href=\"https:\/\/support.microsoft.com\/help\/5077793\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077793<\/a>)<\/li>\n<li>Windows Server 2022 (<a href=\"https:\/\/support.microsoft.com\/help\/5077800\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077800<\/a>)<\/li>\n<li>Windows Server 2019 and Enterprise LTSC 2019 (<a href=\"https:\/\/support.microsoft.com\/help\/5077795\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077795<\/a>)<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<div>Microsoft\u306f2026\u5e741\u6708\u306eWindows\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u6642\u306b\u554f\u984c\u3092\u7279\u5b9a\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u3001&nbsp;2026\u5e741\u670817\u65e5\u306b\u30a2\u30a6\u30c8\u30aa\u30d6\u30d0\u30f3\u30c9(OOB)\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8&nbsp;\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002<\/div>\n<div>  <\/div>\n<ul>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/status-windows-server-2025#3760msgdesc\" rel=\"noopener noreferrer\" target=\"_blank\">\u30ea\u30e2\u30fc\u30c8\u63a5\u7d9a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3051\u308b\u63a5\u7d9a\u304a\u3088\u3073\u8a8d\u8a3c\u306e\u5931\u6557<\/a>:\u3053\u306e\u554f\u984c\u306fWindows 11\u3001\u30d0\u30fc\u30b8\u30e7\u30f325H2\u3001Windows 10\u3001\u30d0\u30fc\u30b8\u30e7\u30f322H2 ESU;Windows Server 2025 \u3067\u3059\u3002\u5f71\u97ff\u3092\u53d7\u3051\u308b\u88fd\u54c1\u306e\u5168\u30ea\u30b9\u30c8\u306f\u3053\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6700\u5f8c\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/status-windows-11-23H2#3764msgdesc\" rel=\"noopener noreferrer\" target=\"_blank\">Secure Launch\u3092\u642d\u8f09\u3057\u305f\u30c7\u30d0\u30a4\u30b9\u306f\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3084\u4f11\u6b62\u72b6\u614b\u306b\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059<\/a>:\u3053\u306e\u554f\u984c\u306fWindows 11\u3001\u30d0\u30fc\u30b8\u30e7\u30f323H2\u306b\u306e\u307f\u5f71\u97ff\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<div>  <\/div>\n<div>\u30a2\u30a6\u30c8\u30aa\u30d6\u30d0\u30f3\u30c9(OOB)\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8&nbsp;\u306f\u30012026\u5e741\u670817\u65e5\u306b <a href=\"https:\/\/catalog.update.microsoft.com\/\" rel=\"noopener noreferrer\" target=\"_blank\">  Microsoft Update Catalog<\/a>\u3067\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002\u3082\u3057\u307e\u30602026\u5e741\u6708\u306eWindows\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u5c0e\u5165\u3057\u3066\u304a\u3089\u305a\u3001IT\u74b0\u5883\u306b\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u6a5f\u80fd\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4ee3\u308f\u308a\u306b\u3053\u306eOOB\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u8a73\u7d30\u3084\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u624b\u9806\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306b\u6319\u3052\u305f\u5404\u5f71\u97ff\u3092\u53d7\u3051\u305fWindows\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u9069\u5207\u306aKB\u8a18\u4e8b\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\u8ffd\u52a0\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f  <a href=\"https:\/\/learn.microsoft.com\/troubleshoot\/windows-client\/installing-updates-features-roles\/download-updates-drivers-hotfixes-windows-update-catalog#step-3-download-updates\" rel=\"noopener noreferrer\" target=\"_blank\">  \u3001\u300cMicrosoft Update Catalog\u304b\u3089\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u65b9\u6cd5<\/a>\u300d\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/div>\n<div>  <\/div>\n<ul>\n<li>Windows 11\u3001\u30d0\u30fc\u30b8\u30e7\u30f325H2\u304a\u3088\u307324H2(<a href=\"https:\/\/support.microsoft.com\/help\/5077744\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077744<\/a>\u5e74)<\/li>\n<li>Windows 11\u3001\u30d0\u30fc\u30b8\u30e7\u30f323H2(<a href=\"https:\/\/support.microsoft.com\/help\/5077797\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077797<\/a>)<\/li>\n<li>Windows 10\u3001\u30d0\u30fc\u30b8\u30e7\u30f322H2 ESU\u304a\u3088\u3073Windows 10 Enterprise LTSC 2021(<a href=\"https:\/\/support.microsoft.com\/help\/5077796\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077796<\/a>)<\/li>\n<li>Windows Server 2025(<a href=\"https:\/\/support.microsoft.com\/help\/5077793\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077793<\/a>)<\/li>\n<li>Windows Server 2022(<a href=\"https:\/\/support.microsoft.com\/help\/5077800\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077800<\/a>)<\/li>\n<li>Windows Server 2019\u304a\u3088\u3073Enterprise LTSC 2019(<a href=\"https:\/\/support.microsoft.com\/help\/5077795\" rel=\"noopener noreferrer\" target=\"_blank\">KB5077795<\/a>)<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1218934 | Take Action: Out-of-band update to address issues observed with the January 2026 Windows security  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-14560","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=14560"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14560\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=14560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=14560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=14560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}