{"family":"windows11","family_label":"Windows 11","build":"26100.7628","base":"26100","tag":"24H2","kb":"KB5078127","kb_url":"https://support.microsoft.com/help/5078127","kb_title":null,"release_date":"2026-01-24","update_type":"2026-01 OOB","update_type_label":"2026-01 OOB","servicing":"LTSC • General Availability Channel","ms_known_issues":[],"ms_none_known":false,"ms_highlights":null,"title":"Windows 11, version 24H2 (26100.7628)","build_type":"release","channel_label":"Release","branch":null,"kind":null,"kind_label":null,"is_dotnet":false,"status":null,"line":{"status":"supported","note":"Supported; 25H2 is the enablement-package successor"},"created":1769332036,"created_iso":"2026-01-25T09:07:16Z","uuid":"d727e3b6-343f-422c-bfd4-43b64bbfd1f9","permalink":"/builds/windows11/26100.7628/","tag_url":"/builds/windows11/24h2/","index_url":"/builds/windows11/","api_url":"https://search.windowsforum.com/api/builds/build/windows11/26100.7628","records":[{"uuid":"d727e3b6-343f-422c-bfd4-43b64bbfd1f9","title":"Windows 11, version 24H2 (26100.7628)","build":"26100.7628","arch":"amd64","created":1769332036,"created_iso":"2026-01-25T09:07:16Z","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=d727e3b6-343f-422c-bfd4-43b64bbfd1f9"},{"uuid":"26dea4de-e9d7-41ad-b96e-e6b9f9d20a71","title":"Windows 11, version 24H2 (26100.7628)","build":"26100.7628","arch":"arm64","created":1769332062,"created_iso":"2026-01-25T09:07:42Z","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=26dea4de-e9d7-41ad-b96e-e6b9f9d20a71"}],"summary":null,"known_issues":[{"thread_id":406184,"node_id":4,"title":"Windows 11 Sign-In Failure Confirmed: Fix KB5078127 for Credential Prompt Issues","replies":0,"views":520,"post_date":1774038186,"last_post_date":1774038186,"url":"https://windowsforum.com/windows-news.4/windows-11-sign-in-failure-confirmed-fix-kb5078127-for-credential-prompt-issues.406184/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":399066,"node_id":4,"title":"Outlook PST Freeze on Windows 11 Fixed by KB5078127 Patch","replies":0,"views":4,"post_date":1769490713,"last_post_date":1769490713,"url":"https://windowsforum.com/windows-news.4/outlook-pst-freeze-on-windows-11-fixed-by-kb5078127-patch.399066/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":399065,"node_id":4,"title":"Outlook Crashes on Windows 11 After January 2026 Patch: Emergency Fix KB5078127","replies":2,"views":3907,"post_date":1769483530,"last_post_date":1769508929,"url":"https://windowsforum.com/windows-news.4/outlook-crashes-on-windows-11-after-january-2026-patch-emergency-fix-kb5078127.399065/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":398990,"node_id":4,"title":"Windows 11 KB5078127 Emergency Patch Fixes Cloud File IO and PST Outlook Issues","replies":0,"views":575,"post_date":1769445748,"last_post_date":1769445748,"url":"https://windowsforum.com/windows-news.4/windows-11-kb5078127-emergency-patch-fixes-cloud-file-io-and-pst-outlook-issues.398990/","kind":"issue","match":"exact","pinned":true,"score":2.0}],"linked":{"news":[{"thread_id":421676,"node_id":4,"title":"January 2026 Windows OOB Updates: KB5077744, KB5078132 & KB5078127 Guide","replies":0,"views":518,"post_date":1780430492,"last_post_date":1780430492,"url":"https://windowsforum.com/windows-news.4/january-2026-windows-oob-updates-kb5077744-kb5078132-kb5078127-guide.421676/","kind":"coverage","match":"exact","pinned":true,"score":2.0},{"thread_id":406184,"node_id":4,"title":"Windows 11 Sign-In Failure Confirmed: Fix KB5078127 for Credential Prompt Issues","replies":0,"views":520,"post_date":1774038186,"last_post_date":1774038186,"url":"https://windowsforum.com/windows-news.4/windows-11-sign-in-failure-confirmed-fix-kb5078127-for-credential-prompt-issues.406184/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":399283,"node_id":4,"title":"Windows 11 January 2026 Patch Regressions and KB5078127 Fix","replies":0,"views":550,"post_date":1769631152,"last_post_date":1769631152,"url":"https://windowsforum.com/windows-news.4/windows-11-january-2026-patch-regressions-and-kb5078127-fix.399283/","kind":"fix","match":"exact","pinned":true,"score":2.0},{"thread_id":399114,"node_id":4,"title":"KB5078127 Emergency Patch Restores Outlook and Cloud File I/O in Windows 11","replies":0,"views":3,"post_date":1769526761,"last_post_date":1769526761,"url":"https://windowsforum.com/windows-news.4/kb5078127-emergency-patch-restores-outlook-and-cloud-file-i-o-in-windows-11.399114/","kind":"fix","match":"exact","pinned":true,"score":2.0},{"thread_id":399088,"node_id":4,"title":"Windows 11 January 2026 Patch Chaos: KB5078127 OOB Cloud File IO Fix","replies":0,"views":476,"post_date":1769512321,"last_post_date":1769512321,"url":"https://windowsforum.com/windows-news.4/windows-11-january-2026-patch-chaos-kb5078127-oob-cloud-file-io-fix.399088/","kind":"fix","match":"exact","pinned":true,"score":2.0},{"thread_id":399083,"node_id":4,"title":"Windows 11 January 2026 Patch Cascade: Cloud File I/O Failures and the KB5078127 Fix","replies":0,"views":3,"post_date":1769508929,"last_post_date":1769508929,"url":"https://windowsforum.com/windows-news.4/windows-11-january-2026-patch-cascade-cloud-file-i-o-failures-and-the-kb5078127-fix.399083/","kind":"fix","match":"exact","pinned":true,"score":2.0},{"thread_id":399066,"node_id":4,"title":"Outlook PST Freeze on Windows 11 Fixed by KB5078127 Patch","replies":0,"views":4,"post_date":1769490713,"last_post_date":1769490713,"url":"https://windowsforum.com/windows-news.4/outlook-pst-freeze-on-windows-11-fixed-by-kb5078127-patch.399066/","kind":"issue","match":"exact","pinned":true,"score":2.0},{"thread_id":399065,"node_id":4,"title":"Outlook Crashes on Windows 11 After January 2026 Patch: Emergency Fix KB5078127","replies":2,"views":3907,"post_date":1769483530,"last_post_date":1769508929,"url":"https://windowsforum.com/windows-news.4/outlook-crashes-on-windows-11-after-january-2026-patch-emergency-fix-kb5078127.399065/","kind":"issue","match":"exact","pinned":true,"score":2.0}],"tutorials":[],"threads":[],"total":41,"exact":21,"window_days":45},"related":{"history":[{"build":"26100.7705","title":"Windows 11, version 24H2 (26100.7705)","created":1769724239,"kb":"KB5074105","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/26100.7705/","current":false},{"build":"26100.7701","title":"Windows 11, version 24H2 (26100.7701)","created":1769551249,"kb":null,"build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/26100.7701/","current":false},{"build":"26100.7634","title":"Windows 11, version 24H2 (26100.7634)","created":1769332182,"kb":null,"build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/26100.7634/","current":false},{"build":"26100.7628","title":"Windows 11, version 24H2 (26100.7628)","created":1769332036,"kb":"KB5078127","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/26100.7628/","current":true},{"build":"26100.7627","title":"Update for Windows 11 (26100.7627)","created":1768844893,"kb":"KB5077744","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/26100.7627/","current":false},{"build":"26100.7623","title":"Cumulative Update for Windows 11 for Windows CPC OS (10.0.26100.7623) (26100.7623)","created":1768329093,"kb":"KB5074109","build_type":"release","channel_label":"Release","kind":"cumulative","url":"/builds/windows11/26100.7623/","current":false},{"build":"26100.7462","title":"Cumulative Update for Windows 11 for Windows CPC OS (10.0.26100.7462) (26100.7462)","created":1765306891,"kb":"KB5072033","build_type":"release","channel_label":"Release","kind":"cumulative","url":"/builds/windows11/26100.7462/","current":false},{"build":"26100.7392","title":"Windows 11, version 24H2 (26100.7392)","created":1765317912,"kb":null,"build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/26100.7392/","current":false}],"history_total":125,"prev":{"build":"26100.7627","title":"Update for Windows 11 (26100.7627)","created":1768844893,"kb":"KB5077744","build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/26100.7627/","current":false},"next":{"build":"26100.7634","title":"Windows 11, version 24H2 (26100.7634)","created":1769332182,"kb":null,"build_type":"release","channel_label":"Release","kind":null,"url":"/builds/windows11/26100.7634/","current":false},"wave":[{"family":"windows11","family_label":"Windows 11","build":"26200.7628","tag":"25H2","kb":null,"created":1769292007,"build_type":"release","url":"/builds/windows11/26200.7628/"}]},"generated":1788056420}