{"id":18159,"date":"2026-08-28T08:02:14","date_gmt":"2026-08-27T23:02:14","guid":{"rendered":"https:\/\/m365jp.net\/?p=18159"},"modified":"2026-08-28T08:06:03","modified_gmt":"2026-08-27T23:06:03","slug":"mc1462918-microsoft-windows-autopatch-september-2026-windows-security-update-requires-a-restart-for-hotpatch-enabled-devices","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-08-28-mc1462918-microsoft-windows-autopatch-september-2026-windows-security-update-requires-a-restart-for-hotpatch-enabled-devices","title":{"rendered":"MC1462918 | Microsoft Windows Autopatch: September 2026 Windows security update requires a restart for hotpatch-enabled devices"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1462918 | Microsoft Windows Autopatch: September 2026 Windows security update requires a restart for hotpatch-enabled devices<\/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>08\/27\/2026 22:06:04<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>08\/27\/2026 22:05:56<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>10\/08\/2026 07:00:00<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<p><b>[What and why]<\/b><\/p>\n<p>The September 2026 Windows security update will be released as a standard update rather than a hotpatch update. Some of the security improvements in this update change components that cannot be updated without a restart. As a result, devices enrolled in   hotpatching will need to restart to complete installation.<\/p>\n<\/p>\n<p><b>[Rollout schedule]<\/b><\/p>\n<ul>\n<li>September 2026: Standard update with restart required for all devices including those that are hotpatch-enabled.<\/li>\n<li>October 2026: Planned baseline update month with restart required.<\/li>\n<li>November 2026: Next hotpatch update expected.<\/li>\n<\/ul>\n<p><b>[Impact on your organization]<\/b><\/p>\n<p><i>Who is affected<\/i><\/p>\n<ul>\n<li>Organizations using Windows Autopatch with hotpatch-enabled devices<\/li>\n<li>Users of devices currently enrolled in hotpatch updates<\/li>\n<\/ul>\n<p><i>Platforms and services<\/i><\/p>\n<ul>\n<li>Windows Autopatch<\/li>\n<li>Windows 11 hotpatch<\/li>\n<li>Windows Server hotpatch<\/li>\n<\/ul>\n<p><i>What will happen<\/i><\/p>\n<ul>\n<li>Hotpatch-enabled devices will require a restart to complete installation of the September 2026 security update.<\/li>\n<li>Hotpatch-enabled devices will remain enrolled in hotpatch updates.<\/li>\n<li>Devices not using hotpatch updates are unaffected because standard Windows security updates already require a restart.<\/li>\n<li>No changes are being made to hotpatch enrollment or configuration requirements.<\/li>\n<\/ul>\n<p><b>[Action required \/ recommendations]<\/b><\/p>\n<p>No action is required.<\/p>\n<p>We recommend that administrators:<\/p>\n<ul>\n<li>Inform affected users that a restart will be required following installation of the September 2026 security update.<\/li>\n<li>Review maintenance windows and device restart policies to help ensure timely installation.<\/li>\n<li>Continue monitoring update deployment and compliance through existing management tools.<\/li>\n<li>Track the hotpatch update calendars on the Windows release health site for both  <a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/windows11-release-information#windows-11-hotpatch-calendar\" target=\"_blank\" style=\"font-family: sans-serif;font-weight: 400\">  Windows 11<\/a> and <a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/windows-server-release-info#windows-server-hotpatch-calendar\" target=\"_blank\" style=\"font-family: sans-serif;font-weight: 400\">  Windows Server<\/a>.&nbsp;<\/li>\n<\/ul>\n<p><b>Learn more<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/windows11-release-information#windows-11-hotpatch-calendar\" target=\"_blank\">Windows 11 hotpatch calendar &#8211; Windows 11 release information | Release health | Windows | Microsoft Learn<\/a><\/li>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/windows-server-release-info#windows-server-hotpatch-calendar\" target=\"_blank\">Windows Server hotpatch calendar &#8211; Windows Server release information | Windows Search release information | Windows   | Microsoft Learn<\/a><\/li>\n<\/ul>\n<p><b>[Compliance considerations]<\/b><\/p>\n<p>No compliance action is required. Update installation and restart behavior will be reflected in update history and compliance reports as usual.&nbsp;<\/p>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<p><b>[\u4f55\u3068\u306a\u305c]<\/b><\/p>\n<p>2026\u5e749\u6708\u306eWindows\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306f\u3001\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u3067\u306f\u306a\u304f\u6a19\u6e96\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3068\u3057\u3066\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6539\u5584\u306e\u4e00\u90e8\u306f\u3001\u518d\u8d77\u52d5\u306a\u3057\u306b\u306f\u66f4\u65b0\u3067\u304d\u306a\u3044\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5909\u66f4\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u306b\u767b\u9332\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5b8c\u4e86\u306e\u305f\u3081\u306b\u518d\u8d77\u52d5\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/p>\n<p><b>[\u5c55\u958b\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb]<\/b><\/p>\n<ul>\n<li>2026\u5e749\u6708:\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u5bfe\u5fdc\u3092\u542b\u3080\u3059\u3079\u3066\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u518d\u8d77\u52d5\u304c\u5fc5\u8981\u306a\u6a19\u6e96\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3002<\/li>\n<li>2026\u5e7410\u6708:\u518d\u30b9\u30bf\u30fc\u30c8\u304c\u5fc5\u8981\u306a\u30d9\u30fc\u30b9\u30e9\u30a4\u30f3\u66f4\u65b0\u6708\u3092\u4e88\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li>2026\u5e7411\u6708:\u6b21\u306e\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u66f4\u65b0\u4e88\u5b9a\u3002<\/li>\n<\/ul>\n<p><b>[\u7d44\u7e54\u3078\u306e\u5f71\u97ff]<\/b><\/p>\n<p><i>\u5f71\u97ff\u3092\u53d7\u3051\u308b\u4eba\u7269<\/i><\/p>\n<ul>\n<li>\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u5bfe\u5fdc\u30c7\u30d0\u30a4\u30b9\u3067Windows\u30aa\u30fc\u30c8\u30d1\u30c3\u30c1\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u7d44\u7e54<\/li>\n<li>\u73fe\u5728\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30c7\u30d0\u30a4\u30b9\u306e\u30e6\u30fc\u30b6\u30fc<\/li>\n<\/ul>\n<p><i>\u30db\u30fc\u30e0\u3068\u30b5\u30fc\u30d3\u30b9<\/i><\/p>\n<ul>\n<li>Windows\u30aa\u30fc\u30c8\u30d1\u30c3\u30c1<\/li>\n<li>Windows 11\u30db\u30c3\u30c8\u30d1\u30c3\u30c1<\/li>\n<li>Windows Server\u30db\u30c3\u30c8\u30d1\u30c3\u30c1<\/li>\n<\/ul>\n<p><i>\u4f55\u304c\u8d77\u3053\u308b\u306e\u304b<\/i><\/p>\n<ul>\n<li>\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u5bfe\u5fdc\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u30012026\u5e749\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5b8c\u4e86\u306b\u4f34\u3044\u518d\u8d77\u52d5\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<li>\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u5bfe\u5fdc\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5bfe\u8c61\u3068\u3057\u3066\u767b\u9332\u3055\u308c\u305f\u307e\u307e\u3067\u3059\u3002<\/li>\n<li>\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u3092\u4f7f\u308f\u306a\u3044\u30c7\u30d0\u30a4\u30b9\u306f\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002\u6a19\u6e96\u7684\u306aWindows\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306f\u3059\u3067\u306b\u518d\u8d77\u52d5\u304c\u5fc5\u8981\u306a\u305f\u3081\u3067\u3059\u3002<\/li>\n<li>\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u306e\u767b\u9332\u3084\u8a2d\u5b9a\u8981\u4ef6\u306b\u5909\u66f4\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<p><b>[\u884c\u52d5\u304c\u5fc5\u8981\/\u63d0\u8a00]<\/b><\/p>\n<p>\u4f55\u306e\u5bfe\u5fdc\u3082\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u79c1\u305f\u3061\u306f\u7ba1\u7406\u8005\u306b\u4ee5\u4e0b\u306e\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059:<\/p>\n<ul>\n<li>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30e6\u30fc\u30b6\u30fc\u306b\u30012026\u5e749\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u306b\u518d\u8d77\u52d5\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u3092\u77e5\u3089\u305b\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30a6\u30a3\u30f3\u30c9\u30a6\u3084\u30c7\u30d0\u30a4\u30b9\u518d\u8d77\u52d5\u30dd\u30ea\u30b7\u30fc\u3092\u78ba\u8a8d\u3057\u3001\u30bf\u30a4\u30e0\u30ea\u30fc\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u78ba\u5b9f\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u65e2\u5b58\u306e\u7ba1\u7406\u30c4\u30fc\u30eb\u3092\u901a\u3058\u3066\u3001\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u5c55\u958b\u3084\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u76e3\u8996\u3092\u7d99\u7d9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/windows11-release-information#windows-11-hotpatch-calendar\" target=\"_blank\" style=\"font-family: sans-serif;font-weight: 400\">Windows 11<\/a>\u3068<a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/windows-server-release-info#windows-server-hotpatch-calendar\" target=\"_blank\" style=\"font-family: sans-serif;font-weight: 400\">Windows   Server<\/a>\u306e\u30ea\u30ea\u30fc\u30b9\u30d8\u30eb\u30b9\u30b5\u30a4\u30c8\u3067\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u66f4\u65b0\u30ab\u30ec\u30f3\u30c0\u30fc\u3092\u8ffd\u8de1\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;<\/li>\n<\/ul>\n<p><b>\u8a73\u3057\u304f\u306f\u3053\u3061\u3089<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/release-health\/windows11-release-information#windows-11-hotpatch-calendar\" target=\"_blank\">Windows 11\u30db\u30c3\u30c8\u30d1\u30c3\u30c1\u30ab\u30ec\u30f3\u30c0\u30fc &#8211; Windows 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Learn<\/a><\/li>\n<\/ul>\n<p><b>[\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u8003\u616e\u4e8b\u9805]<\/b><\/p>\n<p>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u5bfe\u5fdc\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306e\u66f4\u65b0\u304a\u3088\u3073\u518d\u8d77\u52d5\u306e\u52d5\u4f5c\u306f\u901a\u5e38\u901a\u308a\u66f4\u65b0\u5c65\u6b74\u304a\u3088\u3073\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u30ec\u30dd\u30fc\u30c8\u306b\u53cd\u6620\u3055\u308c\u307e\u3059\u3002&nbsp;<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1462918 | Microsoft Windows Autopatch: September 2026 Windows security update requires a restart for hotpatc 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