{"id":132693,"date":"2026-01-29T10:12:35","date_gmt":"2026-01-29T01:12:35","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=132693"},"modified":"2026-01-29T10:12:35","modified_gmt":"2026-01-29T01:12:35","slug":"microsoft-confirms-windows-11-pcs-cannot-boot","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/microsoft-confirms-windows-11-pcs-cannot-boot\/","title":{"rendered":"Microsoft\u3001\u6700\u65b0\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5f8c\u306b\u4e00\u90e8PC\u304c\u8d77\u52d5\u4e0d\u80fd\u306b\u306a\u308b\u4e0d\u5177\u5408\u3092\u6b63\u5f0f\u78ba\u8a8d"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2026\/01\/windows11notboot.jpg\" alt=\"\" width=\"1280\" height=\"853\" class=\"aligncenter size-full wp-image-132629\" \/><\/p>\n<p>2026\u5e741\u6708\u306eWindows\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u306f\u3053\u308c\u307e\u3067\u306b\u591a\u6570\u306e\u4e0d\u5177\u5408\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3059\u3067\u306b\u5b9a\u4f8b\u5916\u306eOOB\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u5bfe\u51e6\u3055\u308c\u305f\u4e0d\u5177\u5408\u304c\u591a\u3044\u306e\u3067\u3059\u304c\u3001\u6700\u8fd1\u5831\u544a\u3055\u308c\u305f<a href=\"https:\/\/softantenna.com\/blog\/windows-11-stop-error\/\">PC\u304c\u8d77\u52d5\u3067\u304d\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u554f\u984c<\/a>\u306b\u3064\u3044\u3066\u3001Microsoft\u304c\u5546\u7528PC\u3092\u4e2d\u5fc3\u3068\u3057\u3066\u767a\u751f\u3057\u3066\u304a\u308a\u3001\u539f\u56e0\u306f\u300c\u4e0d\u5b8c\u5168\u306a\u72b6\u614b\u3067\u306e\u66f4\u65b0\u300d\u3067\u3042\u308b\u3053\u3068\u3092\u6b63\u5f0f\u306b\u8a8d\u3081\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u554f\u984c\u306e\u75c7\u72b6\u306f\u3001PC\u304c\u8d77\u52d5\u3057\u306a\u304f\u306a\u308a\u3001<strong>\u300cUNMOUNTABLE_BOOT_VOLUME\u300d<\/strong>\u30a8\u30e9\u30fc(\u9ed2\u3044\u753b\u9762)\u304c\u8868\u793a\u3055\u308c\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002Microsoft 365\u7ba1\u7406\u30bb\u30f3\u30bf\u30fc\u306b\u63b2\u8f09\u3055\u308c\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<blockquote><p>\nRecent investigations have determined this issue can occur on devices that failed to install the December 2025 security update and were left in an improper state after rolling back the update. Attempting to install Windows updates while in this improper state could result in the device being unable to boot. We are working on a partial resolution that will prevent additional devices from resulting in a no-boot scenario if they try to install an update while in this improper state. However, this partial resolution will not prevent devices from getting into the improper state in the first place, nor will it repair devices that are already unable to boot. We continue to investigate why these devices are failing to install Windows updates or potentially getting into this improper state.<\/p>\n<p>\u6700\u8fd1\u306e\u8abf\u67fb\u306b\u3088\u308c\u3070\u3001\u3053\u306e\u554f\u984c\u306f2025\u5e7412\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u5931\u6557\u3057\u3001\u305d\u306e\u5f8c\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3055\u308c\u305f\u3053\u3068\u3067\u30c7\u30d0\u30a4\u30b9\u304c\u300c\u4e0d\u9069\u5207\u306a\u72b6\u614b\u300d\u306e\u307e\u307e\u6b8b\u3063\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u5206\u304b\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u4e0d\u9069\u5207\u306a\u72b6\u614b\u306e\u307e\u307eWindows Update\u3092\u9069\u7528\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u8d77\u52d5\u4e0d\u80fd\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002Microsoft\u306f\u73fe\u5728\u3001\u3053\u3046\u3057\u305f\u72b6\u614b\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u66f4\u65b0\u3092\u8a66\u307f\u305f\u969b\u306b\u65b0\u305f\u306b\u8d77\u52d5\u4e0d\u80fd\u306b\u9665\u308b\u3053\u3068\u3092\u9632\u3050\u305f\u3081\u306e\u90e8\u5206\u7684\u306a\u5bfe\u51e6\u7b56\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u307e\u3059\u304c\u3001\u3053\u306e\u5bfe\u51e6\u7b56\u306f\u4e0d\u9069\u5207\u306a\u72b6\u614b\u306b\u9665\u308b\u3053\u3068\u81ea\u4f53\u3092\u9632\u3050\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u3059\u3067\u306b\u8d77\u52d5\u4e0d\u80fd\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u30c7\u30d0\u30a4\u30b9\u3092\u4fee\u5fa9\u3059\u308b\u3082\u306e\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002\u306a\u305c\u66f4\u65b0\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u5931\u6557\u3059\u308b\u306e\u304b\u3001\u305d\u3057\u3066\u306a\u305c\u30c7\u30d0\u30a4\u30b9\u304c\u4e0d\u9069\u5207\u306a\u72b6\u614b\u306b\u9665\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u3001Microsoft\u306f\u5f15\u304d\u7d9a\u304d\u8abf\u67fb\u3092\u9032\u3081\u3066\u3044\u307e\u3059\u3002\n<\/p><\/blockquote>\n<p>Microsoft\u306b\u3088\u308b\u3068\u4e0d\u5177\u5408\u306f\u4ee5\u4e0b\u306e\u6761\u4ef6\u304c\u91cd\u306a\u3063\u305f\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<ul>\n<li>2025\u5e7412\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u5931\u6557<\/li>\n<li>\u305d\u306e\u5f8c\u3001\u66f4\u65b0\u304c\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3055\u308c\u300c\u4e0d\u9069\u5207\u306a\u72b6\u614b(improper state)\u300d\u306e\u307e\u307e\u6b8b\u308b<\/li>\n<li>\u305d\u306e\u72b6\u614b\u3067\u3055\u3089\u306b\u65b0\u3057\u3044\u66f4\u65b0\u3092\u9069\u7528\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u8d77\u52d5\u4e0d\u80fd\u306b\u9665\u308b<\/li>\n<\/ul>\n<p>\u73fe\u5728\u3001\u8ffd\u52a0\u306ePC\u304c\u8d77\u52d5\u4e0d\u80fd\u306b\u306a\u308b\u3053\u3068\u3092\u9632\u3050\u305f\u3081\u306e<strong>\u300c\u90e8\u5206\u7684\u306a\u5bfe\u51e6\u7b56\u300d<\/strong>\u3092\u6e96\u5099\u4e2d\u3068\u306e\u3053\u3068\u3067\u3059\u304c\u3001\u3053\u308c\u306f\u3059\u3067\u306b\u8d77\u52d5\u4e0d\u80fd\u306b\u306a\u3063\u305fPC\u3092\u4fee\u5fa9\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u300c\u4e0d\u9069\u5207\u306a\u72b6\u614b\u300d\u306b\u9665\u308b\u3053\u3068\u81ea\u4f53\u3092\u9632\u3050\u3082\u306e\u3067\u3082\u306a\u3044\u3068\u306e\u3053\u3068\u3002<\/p>\n<p>\u306a\u305c\u66f4\u65b0\u304c\u5931\u6557\u3057\u4e0d\u9069\u5207\u306a\u72b6\u614b\u306b\u306a\u308b\u306e\u304b\u306f\u3001\u5f15\u304d\u7d9a\u304d\u8abf\u67fb\u4e2d\u3067\u3001\u6839\u672c\u89e3\u6c7a\u306b\u306f\u307e\u3060\u6642\u9593\u304c\u304b\u304b\u308b\u72b6\u6cc1\u3067\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>PC\u304c\u8d77\u52d5\u3067\u304d\u306a\u3044\u554f\u984c\u306f\u5546\u7528PC\u3092\u4e2d\u5fc3\u306b\u767a\u751f\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u304c\u305d\u308c\u307b\u3069\u5fc3\u914d\u3059\u3079\u304d\u554f\u984c\u3067\u306f\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u305f\u3060\u3057<a href=\"https:\/\/softantenna.com\/blog\/windows-11-version-25h2-24h2-kb5074109-monthly\/\">Windows 11\u306e1\u6708\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0<\/a>\u3067\u306f\u3001\u3053\u308c\u307e\u3067\u306b\u30a2\u30d7\u30ea\u306e\u30d5\u30ea\u30fc\u30ba\u3084PC\u304c\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3067\u304d\u306a\u3044\u554f\u984c\u306a\u3069\u3001\u591a\u6570\u306e\u4e0d\u5177\u5408\u304c\u5831\u544a\u3055\u308c\u3066\u304a\u308a\u3001\u54c1\u8cea\u306b\u95a2\u3059\u308b\u4e0d\u6e80\u304c\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>[via <a href=\"https:\/\/www.neowin.net\/news\/microsoft-confirms-some-pcs-cannot-boot-after-recent-update-explains-what-happened\/\">Neowin<\/a>]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>2026\u5e741\u6708\u306eWindows\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u306f\u3053\u308c\u307e\u3067\u306b\u591a\u6570\u306e\u4e0d\u5177\u5408\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3059\u3067\u306b\u5b9a\u4f8b\u5916\u306eOOB\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u5bfe\u51e6\u3055\u308c\u305f\u4e0d\u5177\u5408\u304c\u591a\u3044\u306e\u3067\u3059\u304c\u3001\u6700\u8fd1\u5831\u544a\u3055\u308c\u305fPC\u304c\u8d77\u52d5\u3067\u304d\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u554f\u984c\u306b\u3064\u3044\u3066\u3001Micro [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":132629,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[3],"tags":[3298,4387],"class_list":["post-132693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows","tag-windows","tag-windows11"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/132693","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=132693"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/132693\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/132629"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=132693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=132693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=132693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}