{"family":"windows11","family_label":"Windows 11","build":"22631.6491","base":"22631","tag":"23H2","kb":"KB5073455","kb_url":"https://support.microsoft.com/help/5073455","kb_title":null,"release_date":"2026-01-13","update_type":"2026-01 B","update_type_label":"Security update (Patch Tuesday)","servicing":"General Availability Channel","ms_known_issues":[],"ms_none_known":false,"ms_highlights":null,"title":"Windows 11, version 23H2 (22631.6491)","build_type":"release","channel_label":"Release","branch":null,"kind":null,"kind_label":null,"is_dotnet":false,"status":null,"line":{"status":"eol","note":"Home/Pro servicing ended November 2025"},"created":1768330446,"created_iso":"2026-01-13T18:54:06Z","uuid":"9443fe15-1a5f-4418-904a-0c242bdd0235","permalink":"/builds/windows11/22631.6491/","tag_url":"/builds/windows11/23h2/","index_url":"/builds/windows11/","api_url":"https://search.windowsforum.com/api/builds/build/windows11/22631.6491","records":[{"uuid":"9443fe15-1a5f-4418-904a-0c242bdd0235","title":"Windows 11, version 23H2 (22631.6491)","build":"22631.6491","arch":"amd64","created":1768330446,"created_iso":"2026-01-13T18:54:06Z","build_type":"release","channel_label":"Release","branch":null,"kind":null,"kind_label":null,"status":null,"kb":null,"download_url":"https://uupdump.net/selectlang.php?id=9443fe15-1a5f-4418-904a-0c242bdd0235"}],"summary":null,"known_issues":[{"thread_id":399918,"node_id":4,"title":"Windows 11 Shutdown Bug with System Guard Secure Launch Fix Timeline KB5073455","replies":0,"views":1,"post_date":1770113732,"last_post_date":1770113732,"url":"https://windowsforum.com/windows-news.4/windows-11-shutdown-bug-with-system-guard-secure-launch-fix-timeline-kb5073455.399918/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":397888,"node_id":4,"title":"Windows 11 23H2 Shutdown Bug (KB5073455) and the KB5077797 Fix","replies":0,"views":4,"post_date":1768903902,"last_post_date":1768903902,"url":"https://windowsforum.com/windows-news.4/windows-11-23h2-shutdown-bug-kb5073455-and-the-kb5077797-fix.397888/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":397824,"node_id":4,"title":"Windows 11 KB5073455 Shutdown Bug With Secure Launch Gets OOB Fix","replies":0,"views":2,"post_date":1768839368,"last_post_date":1768839368,"url":"https://windowsforum.com/windows-news.4/windows-11-kb5073455-shutdown-bug-with-secure-launch-gets-oob-fix.397824/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":397743,"node_id":4,"title":"Windows 11 23H2 Restart on Shutdown Bug Tied to System Guard Secure Launch (KB5073455)","replies":0,"views":69,"post_date":1768813909,"last_post_date":1768813909,"url":"https://windowsforum.com/windows-news.4/windows-11-23h2-restart-on-shutdown-bug-tied-to-system-guard-secure-launch-kb5073455.397743/","kind":"issue","match":"exact","pinned":true,"score":2.0}],"linked":{"news":[{"thread_id":421670,"node_id":4,"title":"Windows 11 “Shut Down” Restarts After KB5073455: Secure Launch & VSM Fixes","replies":0,"views":858,"post_date":1780430396,"last_post_date":1780430396,"url":"https://windowsforum.com/windows-news.4/windows-11-shut-down-restarts-after-kb5073455-secure-launch-vsm-fixes.421670/","kind":"fix","match":"exact","pinned":true,"score":2.0},{"thread_id":399918,"node_id":4,"title":"Windows 11 Shutdown Bug with System Guard Secure Launch Fix Timeline KB5073455","replies":0,"views":1,"post_date":1770113732,"last_post_date":1770113732,"url":"https://windowsforum.com/windows-news.4/windows-11-shutdown-bug-with-system-guard-secure-launch-fix-timeline-kb5073455.399918/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":398014,"node_id":4,"title":"Windows 11 January 2026 KB5074109/KB5073455 Regressions: Sleep Outlook RDP Fixes","replies":0,"views":11,"post_date":1768990331,"last_post_date":1768990331,"url":"https://windowsforum.com/windows-news.4/windows-11-january-2026-kb5074109-kb5073455-regressions-sleep-outlook-rdp-fixes.398014/","kind":"fix","match":"exact","pinned":true,"score":2.0},{"thread_id":397888,"node_id":4,"title":"Windows 11 23H2 Shutdown Bug (KB5073455) and the KB5077797 Fix","replies":0,"views":4,"post_date":1768903902,"last_post_date":1768903902,"url":"https://windowsforum.com/windows-news.4/windows-11-23h2-shutdown-bug-kb5073455-and-the-kb5077797-fix.397888/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":397824,"node_id":4,"title":"Windows 11 KB5073455 Shutdown Bug With Secure Launch Gets OOB Fix","replies":0,"views":2,"post_date":1768839368,"last_post_date":1768839368,"url":"https://windowsforum.com/windows-news.4/windows-11-kb5073455-shutdown-bug-with-secure-launch-gets-oob-fix.397824/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":397743,"node_id":4,"title":"Windows 11 23H2 Restart on Shutdown Bug Tied to System Guard Secure Launch (KB5073455)","replies":0,"views":69,"post_date":1768813909,"last_post_date":1768813909,"url":"https://windowsforum.com/windows-news.4/windows-11-23h2-restart-on-shutdown-bug-tied-to-system-guard-secure-launch-kb5073455.397743/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":397677,"node_id":4,"title":"Windows 11 2026 Patch Causes Restart on Shutdown With Secure Launch (KB5073455)","replies":0,"views":2,"post_date":1768749123,"last_post_date":1768749123,"url":"https://windowsforum.com/windows-news.4/windows-11-2026-patch-causes-restart-on-shutdown-with-secure-launch-kb5073455.397677/","kind":"fix","match":"exact","pinned":true,"score":2.0},{"thread_id":397632,"node_id":4,"title":"Windows 11 Shutdown Bug with Secure Launch KB5073455 and OOB KB5077797","replies":23,"views":6853,"post_date":1768705941,"last_post_date":1768943525,"url":"https://windowsforum.com/windows-news.4/windows-11-shutdown-bug-with-secure-launch-kb5073455-and-oob-kb5077797.397632/","kind":"issue","match":"exact","pinned":true,"score":2.0}],"tutorials":[],"threads":[],"total":55,"exact":25,"window_days":45},"related":{"history":[{"build":"22631.6649","title":"Windows 11, version 23H2 (22631.6649)","created":1770747779,"kb":"KB5075941","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6649/","current":false},{"build":"22631.6495","title":"Windows 11, version 23H2 (22631.6495)","created":1769298266,"kb":"KB5078132","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6495/","current":false},{"build":"22631.6494","title":"Windows 11, version 23H2 (22631.6494)","created":1768692173,"kb":"KB5077797","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6494/","current":false},{"build":"22631.6491","title":"Windows 11, version 23H2 (22631.6491)","created":1768330446,"kb":"KB5073455","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6491/","current":true},{"build":"22631.6345","title":"Windows 11, version 23H2 (22631.6345)","created":1765305005,"kb":"KB5071417","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6345/","current":false},{"build":"22631.6276","title":"Windows 11, version 23H2 (22631.6276)","created":1763677045,"kb":"KB5070312","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6276/","current":false},{"build":"22631.6269","title":"Cumulative Update Preview for Windows 11 Version 23H2 (22631.6269)","created":1763604930,"kb":null,"build_type":"release","channel_label":"Release","kind":"cumulative","url":"/builds/windows11/22631.6269/","current":false},{"build":"22631.6199","title":"Windows 11, version 23H2 (22631.6199)","created":1762884021,"kb":"KB5068865","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6199/","current":false}],"history_total":106,"prev":{"build":"22631.6345","title":"Windows 11, version 23H2 (22631.6345)","created":1765305005,"kb":"KB5071417","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6345/","current":false},"next":{"build":"22631.6494","title":"Windows 11, version 23H2 (22631.6494)","created":1768692173,"kb":"KB5077797","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/22631.6494/","current":false},"wave":[]},"generated":1788058482}