{"id":15105,"date":"2026-02-24T11:00:57","date_gmt":"2026-02-24T02:00:57","guid":{"rendered":"https:\/\/m365jp.net\/?p=15105"},"modified":"2026-02-24T11:03:08","modified_gmt":"2026-02-24T02:03:08","slug":"mc1237599-windows-server-secure-boot-playbook-for-certificates-expiring-in-2026-2","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-02-24-mc1237599-windows-server-secure-boot-playbook-for-certificates-expiring-in-2026-2","title":{"rendered":"MC1237599 | Windows Server Secure Boot playbook for certificates expiring in 2026"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1237599 | Windows Server Secure Boot playbook for certificates expiring in 2026  <\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>stayInformed<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>02\/24\/2026 01:12:13<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>02\/24\/2026 01:12:10<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>02\/24\/2027 01:12:10<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<div>Learn about&nbsp;tools and options available to organizations to update Secure Boot certificates on Windows Server. Certificates begin expiring in June&nbsp;2026. You must update them before that date&nbsp;to help keep your security posture. Many recent platforms already   include the supported 2023 certificates in firmware. However, for the ones that need to be updated,&nbsp;you&nbsp;need to manage this process manually.<\/div>\n<div>&nbsp;<\/div>\n<div><b>When will this happen:<\/b>&nbsp;<\/div>\n<ul>\n<li>The tools are already available to help you to proactively inventory, monitor, and apply updated certificates to your Windows Server devices.<\/li>\n<li>June 2026: The 2011 Secure Boot certificate authorities (CAs) begin expiring.<\/li>\n<\/ul>\n<div>&nbsp;<\/div>\n<div><b>How this will affect your organization:<\/b>&nbsp;<\/div>\n<div>Systems on the 2011 CAs after June 2026 are at risk of running on&nbsp;degraded security posture.&nbsp;To update these systems,&nbsp;please&nbsp;be proactive and&nbsp;follow our recommended&nbsp;approach.<\/div>\n<div>&nbsp;<\/div>\n<div><b>What you need to do to prepare:<\/b>&nbsp;<\/div>\n<div>Read complete guidance in Additional information&nbsp;for details&nbsp;on how&nbsp;to:&nbsp;<\/div>\n<ol>\n<li>Inventory and prepare your environment.&nbsp;&nbsp;<\/li>\n<li>Monitor and check your devices for Secure Boot status.&nbsp;&nbsp;<\/li>\n<li>Apply any&nbsp;needed&nbsp;OEM firmware updates&nbsp;before updating&nbsp;certificates.&nbsp;&nbsp;<\/li>\n<li>Plan and pilot Secure Boot certificate deployments.&nbsp;&nbsp;<\/li>\n<li>Troubleshoot issues.&nbsp;<\/li>\n<\/ol>\n<div>&nbsp;<\/div>\n<div><b>Additional&nbsp;information:<\/b>&nbsp;<\/div>\n<ul>\n<li>Get started today with the recommended approach in&nbsp;<a href=\"https:\/\/aka.ms\/SecureBootForServer\" rel=\"noopener noreferrer\" target=\"_blank\">Windows Server Secure Boot playbook for certificates expiring in&nbsp;2026<\/a>.<\/li>\n<li><a href=\"https:\/\/www.microsoft.com\/windows-server\/blog\/2026\/02\/23\/prepare-your-servers-for-secure-boot-certificate-updates\" rel=\"noopener noreferrer\" target=\"_blank\">Prepare your servers for Secure Boot certificate updates<\/a>.<\/li>\n<li>Join the online event&nbsp;<a href=\"https:\/\/techcommunity.microsoft.com\/event\/windowsevents\/secure-boot-certificate-updates-explained\/4490529\" rel=\"noopener noreferrer\" target=\"_blank\">Secure Boot certificate updates explained &#8211; Microsoft Technical Takeoff<\/a>&nbsp;on   March 9, 2026.&nbsp;<\/li>\n<li>To manage Secure Boot certificate updates on Windows client,&nbsp;see&nbsp;<a href=\"https:\/\/techcommunity.microsoft.com\/blog\/windows-itpro-blog\/secure-boot-playbook-for-certificates-expiring-in-2026\/4469235\" rel=\"noopener noreferrer\" target=\"_blank\">Secure Boot playbook   for certificates expiring in 2026.<\/a>&nbsp;<\/li>\n<li>For the latest information, bookmark\u202f<a href=\"https:\/\/aka.ms\/GetSecureBoot\" rel=\"noopener noreferrer\" target=\"_blank\">https:\/\/aka.ms\/GetSecureBoot<\/a>\u202fas your landing page for resources to help you with Windows Secure Boot certificate&nbsp;updates.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<div>Windows Server\u4e0a\u3067Secure Boot\u8a3c\u660e\u66f8\u3092\u66f4\u65b0\u3059\u308b\u305f\u3081\u306e\u7d44\u7e54\u5411\u3051\u306e\u30c4\u30fc\u30eb\u3084\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u3064\u3044\u3066&nbsp;\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u306f2026\u5e746\u6708&nbsp;\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f53\u5236\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3001\u305d\u306e\u65e5&nbsp;\u307e\u3067\u306b\u66f4\u65b0\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u591a\u304f\u306e\u6700\u8fd1\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306f\u3059\u3067\u306b\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u305f2023\u5e74\u8a3c\u660e\u66f8\u3092\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u306b\u542b\u3093\u3067\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u66f4\u65b0&nbsp;&nbsp;\u304c\u5fc5\u8981\u306a\u3082\u306e\u306b\u3064\u3044\u3066\u306f\u3001\u624b\u52d5\u3067\u7ba1\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/div>\n<div>&nbsp;<\/div>\n<div><b>\u3053\u308c\u306f\u3044\u3064\u5b9f\u73fe\u3057\u307e\u3059\u304b:<\/b>&nbsp;<\/div>\n<ul>\n<li>\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306f\u3059\u3067\u306b\u5229\u7528\u53ef\u80fd\u3067\u3001Windows Server\u30c7\u30d0\u30a4\u30b9\u306b\u5bfe\u3057\u3066\u7a4d\u6975\u7684\u306b\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u3001\u76e3\u8996\u3001\u66f4\u65b0\u8a3c\u660e\u66f8\u306e\u9069\u7528\u3092\u652f\u63f4\u3057\u307e\u3059\u3002<\/li>\n<li>2026\u5e746\u6708:2011\u5e74\u306e\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u8a3c\u660e\u66f8\u767a\u884c\u6a5f\u95a2(CA)\u304c\u671f\u9650\u5207\u308c\u3092\u8fce\u3048\u59cb\u3081\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n<div>&nbsp;<\/div>\n<div><b>\u3053\u308c\u304c\u3042\u306a\u305f\u306e\u7d44\u7e54\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b:<\/b>&nbsp;<\/div>\n<div>2026\u5e746\u6708\u4ee5\u964d\u306e2011\u5e74CA\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f53\u5236\u304c\u52a3\u5316\u3057\u305f&nbsp;\u72b6\u614b\u3067\u7a3c\u50cd\u3059\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002&nbsp;\u3053\u308c\u3089\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u66f4\u65b0\u3059\u308b\u306b\u306f\u3001&nbsp;\u7a4d\u6975\u7684\u306b\u5bfe\u5fdc\u3057\u3001&nbsp;\u63a8\u5968&nbsp;\u3055\u308c\u308b\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044&nbsp;\u3002<\/div>\n<div>&nbsp;<\/div>\n<div><b>\u6e96\u5099\u306e\u305f\u3081\u306b\u3084\u308b\u3079\u304d\u3053\u3068:<\/b>&nbsp;<\/div>\n<div>\u4ee5\u4e0b\u306e\u8a73\u7d30\u306f\u4ee5\u4e0b\u306e\u30ac\u30a4\u30c0\u30f3&nbsp;&nbsp;&nbsp;\u30b9\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002&nbsp;<\/div>\n<ol>\n<li>\u74b0\u5883\u306e\u5728\u5eab\u7ba1\u7406\u3068\u6e96\u5099\u3092\u3057\u307e\u3057\u3087\u3046\u3002&nbsp;&nbsp;<\/li>\n<li>\u30c7\u30d0\u30a4\u30b9\u306e\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u306e\u72b6\u614b\u3092\u76e3\u8996\u3057\u3001\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;&nbsp;<\/li>\n<li>\u8a3c\u660e\u66f8\u3092\u66f4\u65b0&nbsp;\u3059\u308b\u524d\u306b\u3001\u5fc5\u8981\u306a&nbsp;OEM\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8&nbsp;\u3092\u9069\u7528&nbsp;\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;&nbsp;<\/li>\n<li>Secure Boot\u8a3c\u660e\u66f8\u306e\u5c55\u958b\u3092\u8a08\u753b\u30fb\u30d1\u30a4\u30ed\u30c3\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;&nbsp;<\/li>\n<li>\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3002&nbsp;<\/li>\n<\/ol>\n<div>&nbsp;<\/div>\n<div><b>\u8ffd\u52a0&nbsp;\u60c5\u5831:<\/b>&nbsp;<\/div>\n<ul>\n<li><a href=\"https:\/\/aka.ms\/SecureBootForServer\" rel=\"noopener noreferrer\" target=\"_blank\">2026\u5e74\u306b&nbsp;\u671f\u9650\u5207\u308c\u3068\u306a\u308b\u8a3c\u660e\u66f8\u306b\u95a2\u3059\u308bWindows Server\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u30d7\u30ec\u30a4\u30d6\u30c3\u30af<\/a>\u306e\u63a8\u5968\u30a2\u30d7\u30ed\u30fc\u30c1&nbsp;\u304b\u3089\u3001\u4eca\u65e5\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\u3002<\/li>\n<li><a href=\"https:\/\/www.microsoft.com\/windows-server\/blog\/2026\/02\/23\/prepare-your-servers-for-secure-boot-certificate-updates\" rel=\"noopener noreferrer\" target=\"_blank\">\u30b5\u30fc\u30d0\u30fc\u3092\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u8a3c\u660e\u66f8\u306e\u66f4\u65b0\u306b\u5099\u3048<\/a>\u307e\u3057\u3087\u3046\u3002<\/li>\n<li>2026\u5e743\u67089\u65e5\u306b\u958b\u50ac\u3055\u308c\u308b\u30aa\u30f3\u30e9\u30a4\u30f3\u30a4\u30d9\u30f3\u30c8&nbsp;\u300c<a href=\"https:\/\/techcommunity.microsoft.com\/event\/windowsevents\/secure-boot-certificate-updates-explained\/4490529\" rel=\"noopener noreferrer\" target=\"_blank\">Secure Boot\u8a3c\u660e\u66f8\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u89e3\u8aac &#8211; Microsoft Technical Takeoff<\/a>&nbsp;\u300d\u306b\u53c2\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;<\/li>\n<li>Windows\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u306eSecure Boot\u8a3c\u660e\u66f8\u306e\u66f4\u65b0\u7ba1\u7406\u306b\u3064\u3044\u3066\u306f\u3001&nbsp;<a href=\"https:\/\/techcommunity.microsoft.com\/blog\/windows-itpro-blog\/secure-boot-playbook-for-certificates-expiring-in-2026\/4469235\" rel=\"noopener noreferrer\" target=\"_blank\">2026\u5e74\u306b\u671f\u9650\u5207\u308c\u3068\u306a\u308b\u8a3c\u660e\u66f8\u306b\u3064\u3044\u3066\u306fSecure Boot\u30d7\u30ec\u30a4\u30d6\u30c3\u30af<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044&nbsp;\u3002&nbsp;<\/li>\n<li>\u6700\u65b0\u60c5\u5831\u306f\u30d6\u30c3\u30af\u30de\u30fc\u30af?<a href=\"https:\/\/aka.ms\/GetSecureBoot\" rel=\"noopener noreferrer\" target=\"_blank\">https:\/\/aka.ms\/GetSecureBoot<\/a>?Windows\u306e\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u8a3c\u660e\u66f8&nbsp;\u66f4\u65b0\u306b\u95a2\u3059\u308b\u30ea\u30bd\u30fc\u30b9\u306e\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\u3068\u3057\u3066\u3002<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1237599 | Windows Server Secure Boot playbook for certificates expiring in 2026 Classification stayInformed  [&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-15105","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/15105","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=15105"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/15105\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=15105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=15105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=15105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}