{"id":10357,"date":"2025-10-21T04:48:19","date_gmt":"2025-10-21T04:48:19","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=10357"},"modified":"2025-10-21T04:48:19","modified_gmt":"2025-10-21T04:48:19","slug":"windows-11%e3%81%ae%e3%82%a2%e3%83%83%e3%83%97%e3%83%87%e3%83%bc%e3%83%88%e3%81%a7%e3%80%8clocalhost%e3%80%8d%e3%81%8c%e5%a3%8a%e3%82%8c%e3%81%9f%e3%81%a8%e3%81%84%e3%81%86%e5%a0%b1%e5%91%8a%e3%81%8c","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/10357\/","title":{"rendered":"Windows 11\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u300clocalhost\u300d\u304c\u58ca\u308c\u305f\u3068\u3044\u3046\u5831\u544a\u304c\u7d9a\u51fa &#8211; GIGAZINE"},"content":{"rendered":"\n<\/p>\n<div><!-- &larr;20140212 --><\/p>\n<p><!-- google_ad_section_start --><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/unsplash.com\/photos\/macbook-pro-on-brown-wooden-table-yGPxCYPS8H4\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/i.gzn.jp\/img\/2025\/10\/21\/microsoft-windows-11-localhost-broken\/00_m.jpg\" border=\"0\" alt=\"\" class=\"lzsmall img-standard-size\"\/><\/a><\/p>\n<p class=\"preface\">\n<br \/>2025\u5e7410\u6708\u306bMicrosoft\u304c\u914d\u4fe1\u3057\u305fWindows 11\u5411\u3051\u306e\u7d2f\u7a4d\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0(KB5066835)\u3092\u9069\u7528\u3057\u305f\u74b0\u5883\u3067\u3001localhost\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306a\u3069\u304c\u81ea\u8eab\u306ePC\u4e0a\u3067\u958b\u767a\u30fb\u30c6\u30b9\u30c8\u3057\u3066\u3044\u308b\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u306b\u30ed\u30fc\u30ab\u30eb\u30db\u30b9\u30c8\u3092\u901a\u3058\u3066\u63a5\u7d9a\u3067\u304d\u306a\u304f\u306a\u308a\u3001Visual Studio\u3067\u306e\u30c7\u30d0\u30c3\u30b0\u3084<b><a target=\"_blank\" href=\"https:\/\/learn.microsoft.com\/ja-jp\/training\/paths\/aspnet-core-web-app\/\" target=\"_blank\">ASP.NET\u30d3\u30eb\u30c9<\/a><\/b>\u3068\u3044\u3063\u305f\u4f5c\u696d\u306b\u652f\u969c\u304c\u51fa\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><b>Localhost not working anymore after 2025-10 cumulative update Windows 11 &#8211; Microsoft Q&amp;A<\/b><br \/><b><a target=\"_blank\" href=\"https:\/\/learn.microsoft.com\/en-us\/answers\/questions\/5585563\/localhost-not-working-anymore-after-2025-10-cumula\" target=\"_blank\">https:\/\/learn.microsoft.com\/en-us\/answers\/questions\/5585563\/localhost-not-working-anymore-after-2025-10-cumula<\/a><\/b><\/p>\n<p><b>Microsoft update breaks localhost in Windows 11 \u2022 The Register<\/b><br \/><b><a target=\"_blank\" href=\"https:\/\/www.theregister.com\/2025\/10\/16\/windows_11_update_localhost\/\" target=\"_blank\">https:\/\/www.theregister.com\/2025\/10\/16\/windows_11_update_localhost\/<\/a><\/b><\/p>\n<p>\u3053\u306e\u554f\u984c\u306f\u30012025\u5e7410\u6708\u306e\u7d2f\u7a4d\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0(<b><a target=\"_blank\" href=\"https:\/\/support.microsoft.com\/ja-jp\/topic\/2025-%E5%B9%B4-10-%E6%9C%88-14-%E6%97%A5-kb5066835-os-%E3%83%93%E3%83%AB%E3%83%89-26200-6899-%E3%81%8A%E3%82%88%E3%81%B3-26100-6899-1db237d8-9f3b-4218-9515-3e0a32729685\" target=\"_blank\">KB5066835<\/a><\/b>)\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u5f8c\u306b\u767a\u751f\u3059\u308b\u3068\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u30ed\u30fc\u30ab\u30eb\u30db\u30b9\u30c8\u3092\u901a\u3058\u3066\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001HTTP\/2\u30d7\u30ed\u30c8\u30b3\u30eb\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3001\u63a5\u7d9a\u306b\u5931\u6557\u3059\u308b\u3068\u306e\u3053\u3068\u3002\u3053\u308c\u306b\u3088\u308a\u3001Visual Studio\u3092\u4f7f\u7528\u3057\u305f\u30c7\u30d0\u30c3\u30b0\u4f5c\u696d\u3084\u3001ASP.NET\u3067\u69cb\u7bc9\u3055\u308c\u305f\u30a2\u30d7\u30ea\u306e\u52d5\u4f5c\u78ba\u8a8d\u306a\u3069\u304c\u3067\u304d\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>IT\u7cfb\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8\u306eThe Register\u306f\u300c\u4e0d\u5177\u5408\u306e\u539f\u56e0\u306f\u3001Windows\u306e\u30ab\u30fc\u30cd\u30eb\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3042\u308a\u3001\u30ed\u30fc\u30ab\u30eb\u306eHTTP\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u51e6\u7406\u3059\u308bHTTP.sys\u306b\u30d0\u30b0\u304c\u6df7\u5165\u3057\u305f\u3053\u3068\u306b\u3042\u308b\u3068\u7279\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u300d\u3068\u5831\u3058\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u306e\u554f\u984c\u306fWindows 11 24H2\u3092\u30af\u30ea\u30fc\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u74b0\u5883\u3067\u306f\u767a\u751f\u3057\u306a\u3044\u3068\u306e\u5831\u544a\u3082\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u30d0\u30b0\u306fOS\u306e\u6839\u5e79\u306b\u3042\u308b\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u65e2\u5b58\u306e\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u306b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u9069\u7528\u3055\u308c\u308b\u969b\u306e\u7af6\u5408\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a target=\"_blank\" href=\"https:\/\/unsplash.com\/photos\/black-and-white-laptop-computer--jCY4oEMA3o\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/i.gzn.jp\/img\/2025\/10\/21\/microsoft-windows-11-localhost-broken\/01_m.jpg\" border=\"0\" alt=\"\" class=\"lzsmall\"\/><\/a><\/p>\n<p class=\"preface\">\n<br \/>Microsoft\u306e\u30d5\u30a9\u30fc\u30e9\u30e0\u3067\u6700\u3082\u6210\u529f\u5831\u544a\u306e\u591a\u3044\u89e3\u6c7a\u7b56\u306f\u3001\u539f\u56e0\u3068\u306a\u3063\u3066\u3044\u308b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u3002\u307e\u305f\u3001KB5066835\u3092\u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3082\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u3001<b><a target=\"_blank\" href=\"https:\/\/support.microsoft.com\/ja-jp\/topic\/2025-%E5%B9%B4-9-%E6%9C%88-29-%E6%97%A5-kb5065789-os-%E3%83%93%E3%83%AB%E3%83%89-26200-6725-%E3%81%8A%E3%82%88%E3%81%B3-26100-6725-%E3%83%97%E3%83%AC%E3%83%93%E3%83%A5%E3%83%BC-fa03ce47-cec5-4d1c-87d0-cac4195b4b4e\" target=\"_blank\">KB5065789<\/a><\/b>\u3082\u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3068\u89e3\u6c7a\u3057\u305f\u3068\u3044\u3046\u5831\u544a\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>KB5066835\u306e\u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u7ba1\u7406\u8005\u3068\u3057\u3066\u5b9f\u884c\u3057\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3059\u308b\u3053\u3068\u3067\u884c\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u306bWindows Update\u306b\u3088\u3063\u3066\u81ea\u52d5\u7684\u306b\u518d\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u4e00\u6642\u7684\u306b\u66f4\u65b0\u3092\u505c\u6b62\u3059\u308b\u304b\u3001\u7279\u5b9a\u306e\u66f4\u65b0\u3092\u975e\u8868\u793a\u306b\u3059\u308b\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre><code>wusa \/uninstall \/kb:5066835<\/code><\/pre>\n<p class=\"preface\">\n<br \/>\u8a18\u4e8b\u4f5c\u6210\u6642\u70b9\u3067\u3001Microsoft\u304b\u3089\u3053\u306e\u554f\u984c\u306b\u95a2\u3059\u308b\u516c\u5f0f\u306a\u767a\u8868\u306f\u3042\u308a\u307e\u305b\u3093\u3002Microsoft\u306e\u30d5\u30a9\u30fc\u30e9\u30e0\u3067\u306f\u3001\u30a4\u30f3\u30c7\u30a3\u30da\u30f3\u30c7\u30f3\u30c8\u30a2\u30c9\u30d0\u30a4\u30b6\u30fc\u304c\u3053\u306e\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3088\u3063\u3066HTTP\/2\u3068\u30eb\u30fc\u30d7\u30d0\u30c3\u30af\u901a\u4fe1\u306b<b><a target=\"_blank\" href=\"https:\/\/wa3.i-3-i.info\/word12330.html\" target=\"_blank\">\u30ea\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3<\/a><\/b>\u304c\u751f\u3058\u305f\u3053\u3068\u3092\u8a8d\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a target=\"_blank\" href=\"https:\/\/unsplash.com\/photos\/a-laptop-computer-sitting-on-top-of-a-white-table-jILZG4zBAQ4\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/i.gzn.jp\/img\/2025\/10\/21\/microsoft-windows-11-localhost-broken\/02_m.jpg\" border=\"0\" alt=\"\" class=\"lzsmall\"\/><\/a><\/p>\n<p class=\"preface\">\n<br \/>The Register\u306f\u300cMicrosoft\u306f<b><a target=\"_blank\" href=\"https:\/\/gigazine.net\/news\/20251014-windows-10-support-eol-mct\/\" target=\"_blank\">\u30e1\u30c7\u30a3\u30a2\u4f5c\u6210\u30c4\u30fc\u30eb\u306b\u4e0d\u5177\u5408<\/a><\/b>\u3092\u8d77\u3053\u3057\u305f\u306e\u3068\u540c\u3058\u9031\u306b\u3001\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306eOS\u304c\u30ed\u30fc\u30ab\u30eb\u958b\u767a\u3092\u53f0\u7121\u3057\u306b\u3057\u307e\u3057\u305f\u3002\u6570\u5104\u5186\u3092\u304b\u3051\u3066\u884c\u3063\u3066\u3044\u308b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u63a8\u9032\u306f\u3001Windows\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u304c\u4f9d\u7136\u3068\u3057\u3066\u3044\u304b\u306b\u8106\u5f31(\u305c\u3044\u3058\u3083\u304f)\u3067\u3042\u308b\u304b\u3092\u6d6e\u304d\u5f6b\u308a\u306b\u3057\u307e\u3057\u305f\u300d\u3068\u6279\u5224\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><!-- google_ad_section_end --><\/p>\n<div style=\"text-align: center; margin: 10px auto 0px;\">\n<p>\u3053\u306e\u8a18\u4e8b\u306e\u30bf\u30a4\u30c8\u30eb\u3068URL\u3092\u30b3\u30d4\u30fc\u3059\u308b<\/p>\n<\/div>\n<\/div>\n\n<br \/><a href=\"https:\/\/gigazine.net\/news\/20251021-microsoft-windows-11-localhost-broken\/\">\u5143\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3059\u308b <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"2025\u5e7410\u6708\u306bMicrosoft\u304c\u914d\u4fe1\u3057\u305fWindows 11\u5411\u3051\u306e\u7d2f\u7a4d\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0(KB5066835)\u3092\u9069\u7528\u3057\u305f\u74b0\u5883\u3067\u3001localhost\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u958b\u767a\u8005 [&hellip;]","protected":false},"author":1,"featured_media":10358,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-10357","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hatena-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Windows 11\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u300clocalhost\u300d\u304c\u58ca\u308c\u305f\u3068\u3044\u3046\u5831\u544a\u304c\u7d9a\u51fa - GIGAZINE - \u30dd\u30b1\u30b3\u30f3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gigazine.net\/news\/20251021-microsoft-windows-11-localhost-broken\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Windows 11\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u300clocalhost\u300d\u304c\u58ca\u308c\u305f\u3068\u3044\u3046\u5831\u544a\u304c\u7d9a\u51fa - GIGAZINE - \u30dd\u30b1\u30b3\u30f3\" \/>\n<meta property=\"og:description\" content=\"2025\u5e7410\u6708\u306bMicrosoft\u304c\u914d\u4fe1\u3057\u305fWindows 11\u5411\u3051\u306e\u7d2f\u7a4d\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0(KB5066835)\u3092\u9069\u7528\u3057\u305f\u74b0\u5883\u3067\u3001localhost\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u958b\u767a\u8005 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/gigazine.net\/news\/20251021-microsoft-windows-11-localhost-broken\/\" \/>\n<meta property=\"og:site_name\" content=\"\u30dd\u30b1\u30b3\u30f3\" \/>\n<meta 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