{"id":14914,"date":"2026-02-11T04:01:45","date_gmt":"2026-02-10T19:01:45","guid":{"rendered":"https:\/\/m365jp.net\/?p=14914"},"modified":"2026-02-11T04:06:16","modified_gmt":"2026-02-10T19:06:16","slug":"mc1230373-secure-boot-certificate-updates-actions-required-ahead-of-june-2026-expiration","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-02-11-mc1230373-secure-boot-certificate-updates-actions-required-ahead-of-june-2026-expiration","title":{"rendered":"MC1230373 | Secure Boot certificate updates: actions required ahead of June 2026 expiration"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1230373 | Secure Boot certificate updates: actions required ahead of June 2026 expiration<\/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\/10\/2026 18:04:26<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>02\/10\/2026 18:04:17<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>02\/10\/2027 18:04:17<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<div>Secure Boot is a foundational Windows security feature that runs at startup, before Windows load, and helps ensure that only trusted, digitally signed software can execute. After more than 15 years of continuous service, the original Secure Boot certificates   are reaching the end of their planned lifecycle and begin expiring in late June 2026.<\/div>\n<div>  <\/div>\n<div>To learn more about Microsoft\u2019s effort to update these certificates, see the blog post  <a href=\"https:\/\/blogs.windows.com\/windowsexperience\/?p=180181\" rel=\"noopener noreferrer\" target=\"_blank\">  Refreshing the root of trust: industry collaboration on Secure Boot certificate updates<\/a>. To prevent disruption and maintain secure startup across Windows environments, plan for these certificates update following the guidance in the  <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<\/a>.<\/div>\n<div>  <\/div>\n<div><b>When this will happen:<\/b><\/div>\n<div>The 2011 Secure Boot certificates begin expiring in June 2026.<\/div>\n<div>  <\/div>\n<div><b>What you need to do to prepare:<\/b><\/div>\n<div>Review the <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> to understand requirements, timelines, and supported scenarios. Additionally, bookmark  <a href=\"https:\/\/aka.ms\/GetSecureBoot\" rel=\"noopener noreferrer\" target=\"_blank\">  https:\/\/aka.ms\/GetSecureBoot<\/a> for more information about this change, OEMs guidance, and answers to frequently asked questions.<\/div>\n<div><b>&nbsp;<\/b><\/div>\n<div><b>Additional technical resources:<\/b><\/div>\n<ul>\n<li>If you use Microsoft Intune, read <a href=\"https:\/\/support.microsoft.com\/topic\/microsoft-intune-method-of-secure-boot-for-windows-devices-with-it-managed-updates-1c4cf9a3-8983-40c8-924f-44d9c959889d\" rel=\"noopener noreferrer\" target=\"_blank\">  <u>Microsoft Intune method of Secure Boot for Windows devices with IT-managed updates.<\/u><\/a>&nbsp;<\/li>\n<li>Compare this&nbsp;method&nbsp;to <a href=\"https:\/\/support.microsoft.com\/kb\/5068202\" rel=\"noopener noreferrer\" target=\"_blank\">  <u>Registry key updates for Secure Boot: Windows devices with IT-managed updates<\/u><\/a>.&nbsp;&nbsp;<\/li>\n<li>Check out the option <a href=\"https:\/\/support.microsoft.com\/kb\/5068198\" rel=\"noopener noreferrer\" target=\"_blank\">  <u>Group Policy Objects (GPO) method of Secure Boot for Windows devices with IT-managed updates<\/u><\/a>.&nbsp;<\/li>\n<li>See how these methods work together in <a href=\"https:\/\/techcommunity.microsoft.com\/blog\/windows-itpro-blog\/secure-boot-playbook-for-certificates-expiring-in-2026\/4469235\" rel=\"noopener noreferrer\" target=\"_blank\">  <u>Secure Boot playbook for certificates expiring in 2026.<\/u><\/a><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<div>Secure Boot\u306fWindows\u306e\u57fa\u672c\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u3067\u3001\u8d77\u52d5\u6642\u306bWindows\u306e\u30ed\u30fc\u30c9\u524d\u306b\u52d5\u4f5c\u3057\u3001\u4fe1\u983c\u3067\u304d\u308b\u30c7\u30b8\u30bf\u30eb\u7f72\u540d\u3055\u308c\u305f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u307f\u304c\u5b9f\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u300215\u5e74\u4ee5\u4e0a\u306e\u9023\u7d9a\u30b5\u30fc\u30d3\u30b9\u3092\u7d4c\u3066\u3001\u5143\u306eSecure Boot\u8a3c\u660e\u66f8\u306f\u4e88\u5b9a\u3055\u308c\u305f\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306e\u7d42\u308f\u308a\u3092\u8fce\u3048\u30012026\u5e746\u6708\u4e0b\u65ec\u304b\u3089\u6709\u52b9\u671f\u9650\u304c\u59cb\u307e\u308a\u307e\u3059\u3002<\/div>\n<div>  <\/div>\n<div>Microsoft\u306e\u3053\u308c\u3089\u306e\u8a3c\u660e\u66f8\u66f4\u65b0\u306e\u53d6\u308a\u7d44\u307f\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f\u3001\u30d6\u30ed\u30b0\u8a18\u4e8b\u300c <a href=\"https:\/\/blogs.windows.com\/windowsexperience\/?p=180181\" rel=\"noopener noreferrer\" target=\"_blank\">  Refreshing the root of trust: industry collaboration on Secure Boot certificate updates\u300d<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002Windows\u74b0\u5883\u5168\u4f53\u3067\u306e\u4e2d\u65ad\u3092\u9632\u304e\u3001\u5b89\u5168\u306a\u8d77\u52d5\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3001  <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\u306e\u30d7\u30ec\u30a4\u30d6\u30c3\u30af<\/a>\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u5f93\u3063\u3066\u3053\u308c\u3089\u306e\u8a3c\u660e\u66f8\u306e\u66f4\u65b0\u3092\u8a08\u753b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/div>\n<div>  <\/div>\n<div><b>?\u305d\u306e\u6642\u671f:<\/b><\/div>\n<div>2011\u5e74\u306e\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u8a3c\u660e\u66f8\u306f2026\u5e746\u6708\u306b\u6709\u52b9\u671f\u9650\u304c\u59cb\u307e\u308a\u307e\u3059\u3002<\/div>\n<div>  <\/div>\n<div><b>\u6e96\u5099\u306e\u305f\u3081\u306b\u3084\u308b\u3079\u304d\u3053\u3068:<\/b><\/div>\n<div><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\u306e\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u30d7\u30ec\u30a4\u30d6\u30c3\u30af<\/a>\u3092\u78ba\u8a8d\u3057\u3001\u8981\u4ef6\u3001\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3001\u5bfe\u5fdc\u30b7\u30ca\u30ea\u30aa\u3092\u7406\u89e3\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3055\u3089\u306b\u3001\u3053\u306e\u5909\u66f4\u3001OEM\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u3001\u3088\u304f\u3042\u308b\u8cea\u554f\u3078\u306e\u56de\u7b54\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/aka.ms\/GetSecureBoot\" rel=\"noopener noreferrer\" target=\"_blank\">https:\/\/aka.ms\/GetSecureBoot<\/a>   \u3092\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/div>\n<div><b>&nbsp;<\/b><\/div>\n<div><b>\u8ffd\u52a0\u306e\u6280\u8853\u30ea\u30bd\u30fc\u30b9:<\/b><\/div>\n<ul>\n<li>Microsoft Intune\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001 <a href=\"https:\/\/support.microsoft.com\/topic\/microsoft-intune-method-of-secure-boot-for-windows-devices-with-it-managed-updates-1c4cf9a3-8983-40c8-924f-44d9c959889d\" rel=\"noopener noreferrer\" target=\"_blank\">  <u>IT\u7ba1\u7406\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u6301\u3064Windows\u30c7\u30d0\u30a4\u30b9\u5411\u3051\u306eMicrosoft Intune Secure Boot<\/u><\/a>\u30e1\u30bd\u30c3\u30c9\u3092\u8aad\u3093\u3067\u304f\u3060\u3055\u3044\u3002&nbsp;<\/li>\n<li>\u3053\u306e&nbsp;\u65b9\u6cd5&nbsp;\u3092 <a href=\"https:\/\/support.microsoft.com\/kb\/5068202\" rel=\"noopener noreferrer\" target=\"_blank\">  <u>\u3001IT\u7ba1\u7406\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u6301\u3064Windows\u30c7\u30d0\u30a4\u30b9\u306e\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u306e\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u66f4\u65b0<\/u><\/a>\u3068\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;&nbsp;<\/li>\n<li>Windows <a href=\"https:\/\/support.microsoft.com\/kb\/5068198\" rel=\"noopener noreferrer\" target=\"_blank\">  <u>\u30c7\u30d0\u30a4\u30b9\u5411\u3051\u306eIT\u7ba1\u7406\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u4ed8\u304d\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u306e\u30b0\u30eb\u30fc\u30d7\u30dd\u30ea\u30b7\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8(GPO)\u30e1\u30bd\u30c3\u30c9<\/u><\/a>\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;<\/li>\n<li>\u3053\u308c\u3089\u306e\u624b\u6cd5\u304c\u3069\u306e\u3088\u3046\u306b\u9023\u643a\u3059\u308b\u304b\u306f\u3001 <a href=\"https:\/\/techcommunity.microsoft.com\/blog\/windows-itpro-blog\/secure-boot-playbook-for-certificates-expiring-in-2026\/4469235\" rel=\"noopener noreferrer\" target=\"_blank\">  <u>2026\u5e74\u306b\u671f\u9650\u5207\u308c\u306e\u8a3c\u660e\u66f8\u306b\u95a2\u3059\u308bSecure Boot\u306e\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/u><\/a><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1230373 | Secure Boot certificate updates: actions required ahead of June 2026 expiration Classification sta 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