{"id":136258,"date":"2026-10-18T10:35:30","date_gmt":"2026-10-18T01:35:30","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=136258"},"modified":"2026-10-18T10:35:30","modified_gmt":"2026-10-18T01:35:30","slug":"windows-11-kb5127648-0x800f0845-install-failure","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/windows-11-kb5127648-0x800f0845-install-failure\/","title":{"rendered":"Windows 11\u306e\u66f4\u65b0\u5931\u6557\u554f\u984c\u304c\u9577\u671f\u5316\u3002KB5127648\u3084KB5121003\u3067\u30820x800f0845\u30a8\u30e9\u30fc\u767a\u751f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2026\/10\/s_20261014-_101304-1.webp\" alt=\"\" width=\"1195\" height=\"746\" class=\"aligncenter size-full wp-image-136201\" \/><\/p>\n<p>Microsoft\u304c2026\u5e7410\u6708\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u3057\u3066\u914d\u4fe1\u3057\u305fWindows 11\u5411\u3051\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u300c<a href=\"https:\/\/softantenna.com\/blog\/windows-11-kb5127648\/\">KB5127648<\/a>\u300d\u306b\u95a2\u3057\u3001\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u5931\u6557\u3059\u308b\u3068\u306e\u5831\u544a\u304c\u5bc4\u305b\u3089\u308c\u3066\u3044\u307e\u3059<br \/>\n(<\/span><a href=\"https:\/\/learn.microsoft.com\/en-sg\/answers\/questions\/5895130\/kb5089549-install-error-0x800f0845\">1<\/a><span>, <\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/answers\/questions\/5982539\/windows-11-kb5121003-installation-and-boot-failure\">2<\/a><span>, <\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/answers\/questions\/5991929\/blank-and-start-2026-08-security-update-kb5121003\">3<\/a><span>, <\/span><a href=\"https:\/\/techcommunity.microsoft.com\/discussions\/windows11\/win11-update-problem-pc-hang-after-update\/4561417\">4<\/a><span>, <\/span><a href=\"https:\/\/learn.microsoft.com\/en-ca\/answers\/questions\/6040356\/windows-11-25h2-cumulative-updates-fail-every-mont\">5<\/a><span>, <\/span><a href=\"https:\/\/learn.microsoft.com\/en-ca\/answers\/questions\/6040799\/how-to-fix-2026-10-security-update-kb5127648-26300\">6<\/a><span>, <\/span><a href=\"https:\/\/learn.microsoft.com\/en-ca\/answers\/questions\/6039416\/how-do-i-fix-error-0x80070306-when-installing-upda\">7<\/a><span>)<\/p>\n<p>\u7279\u306b\u300c0x800f0845\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u304c\u8868\u793a\u3055\u308c\u308b\u30b1\u30fc\u30b9\u304c\u76ee\u7acb\u3063\u3066\u304a\u308a\u3001\u3053\u306e\u554f\u984c\u306f\u4eca\u56de\u306e\u66f4\u65b0\u3060\u3051\u3067\u306a\u304f\u6570\u30ab\u6708\u524d\u304b\u3089\u7d9a\u3044\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.neowin.net\/news\/windows-11-kb5127648-kb5121003-kb5129195-kb5089549-installs-fail-with-0x800f0845-error\/\">Neowin<\/a>\u306b\u3088\u308b\u3068\u30012026\u5e745\u6708\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u305f\u300cKB5089549\u300d\u306e\u9803\u304b\u3089\u540c\u69d8\u306e\u5831\u544a\u304c\u898b\u3089\u308c\u3001\u305d\u306e\u5f8c\u306e2026\u5e748\u6708\u66f4\u65b0\u300c<a href=\"https:\/\/softantenna.com\/blog\/windows-11-version-25h2-24h2-kb5089549-monthly\/\">KB5121003<\/a>\u300d\u3001\u3055\u3089\u306b\u306f\u7dca\u6025\u914d\u4fe1\u3055\u308c\u305f\u5e2f\u57df\u5916\u66f4\u65b0\u300c<a href=\"https:\/\/softantenna.com\/blog\/windows-11-version-25h2-24h2-kb5129195-monthly\/\">KB5129195<\/a>\u300d\u3067\u3082\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5931\u6557\u306e\u5831\u544a\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u308b\u6a21\u69d8\u3002<\/p>\n<p>\u3053\u306e\u3053\u3068\u304b\u3089\u3001\u7279\u5b9a\u306e\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u56fa\u6709\u306e\u554f\u984c\u3067\u306f\u306a\u304f\u3001Windows Update\u306e\u4e00\u90e8\u74b0\u5883\u306b\u5171\u901a\u3059\u308b\u6839\u6df1\u3044\u4e0d\u5177\u5408\u3067\u3042\u308b\u53ef\u80fd\u6027\u3082\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u4e0d\u5177\u5408\u306f24H2\/25H2\u3068\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u5171\u6709\u3059\u308b\u3001\u6700\u65b0\u306eWindows 11 26H2\u3067\u3082\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u73fe\u6642\u70b9\u3067Microsoft\u304b\u3089\u6b63\u5f0f\u306a\u89e3\u6c7a\u7b56\u306f\u306a\u3057<\/h2>\n<p>\u5831\u544a\u3055\u308c\u3066\u3044\u308b\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u306f\u300c0x800f0845\u300d\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300c0x80070306\u300d\u3084\u300c0x800f0989\u300d\u3068\u3044\u3063\u305f\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u3082\u78ba\u8a8d\u3055\u308c\u3066\u304a\u308a\u3001\u66f4\u65b0\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u95a2\u9023\u3059\u308b\u8907\u6570\u306e\u554f\u984c\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>Microsoft\u306e<a href=\"https:\/\/support.microsoft.com\/en-us\/windows\/deployment\/updates-lifecycle\/troubleshoot-problems-updating-windows\">\u516c\u5f0f\u30b5\u30dd\u30fc\u30c8\u60c5\u5831<\/a>\u306b\u306f\u300c0x800f0845\u300d\u300c0x800f0989\u300d\u300c0x80070306\u300d\u306b\u95a2\u3059\u308b\u5177\u4f53\u7684\u306a\u8aac\u660e\u3084\u4fee\u6b63\u65b9\u6cd5\u306f\u63b2\u8f09\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30e6\u30fc\u30b6\u30fc\u306f\u4eca\u5f8c\u306e\u4fee\u6b63\u3092\u5f85\u3064\u304b\u3001\u30b7\u30b9\u30c6\u30e0\u30d5\u30a1\u30a4\u30eb\u306e\u6574\u5408\u6027\u3092\u78ba\u8a8d\u3059\u308bSFC\u3084DISM\u306e\u5b9f\u884c\u3001Windows Update\u306e\u4fee\u5fa9\u6a5f\u80fd\u306a\u3069\u3001\u4e00\u822c\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8a66\u3059\u3057\u304b\u306a\u3044\u72b6\u6cc1\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft\u304c2026\u5e7410\u6708\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u3057\u3066\u914d\u4fe1\u3057\u305fWindows 11\u5411\u3051\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u300cKB5127648\u300d\u306b\u95a2\u3057\u3001\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u5931\u6557\u3059\u308b\u3068\u306e\u5831\u544a\u304c\u5bc4\u305b\u3089\u308c\u3066\u3044\u307e\u3059 (1, 2,  [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":136201,"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-136258","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\/136258","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=136258"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/136258\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/136201"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=136258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=136258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=136258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}