{"data":{"id":30,"lang":"en","title":"Microsoft Releases Emergency Fix After Windows 11 January Update Blocks Shutdown","summary":"Microsoft patches Windows 11 bug that prevented shutdown on Enterprise devices after January security update.","category":"technology","category_label":"Technology","published_at":"2026-01-22T07:31:08Z","updated_at":"2026-01-22T07:31:08Z","url":"https://techtools.cz/tools/news/article/30-microsoft-releases-emergency-fix-after-windows-11-january-update-blocks-shutdown","api_url":"https://techtools.cz/news-api/v1/articles/30?lang=en","markdown_url":"https://techtools.cz/news-api/v1/articles/30.md?lang=en","image_url":"https://www.bleepstatic.com/content/hl-images/2025/05/28/Windows-headpic.jpg","word_count":115,"reading_time_minutes":1,"sources":[{"url":"https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-oob-windows-updates-to-fix-shutdown-cloud-pc-bugs/","domain":"bleepingcomputer.com"},{"url":"https://www.theregister.com/2026/01/19/windows_11_shutdown_bug/","domain":"theregister.com"},{"url":"https://www.engadget.com/computing/microsoft-issues-emergency-fix-afer-a-security-update-left-some-windows-11-devices-unable-to-shut-down-192216734.html","domain":"engadget.com"}],"translation":null,"content":"Microsoft has issued an emergency out-of-band update after the January 2026 security patch left some Windows 11 devices unable to shut down properly. The bug affected PCs running version 23H2 with System Guard Secure Launch enabled, causing them to restart instead of powering off.\n\nThe fix, KB5077797, was released on January 17 and addresses the shutdown regression on affected 23H2 devices. Enterprise and IoT edition users are primarily impacted, as the problematic KB5073455 update was only offered for these versions.\n\nThe same out-of-band update also restores remote connection login functionality for Windows 10 and 11 users. Microsoft separately acknowledged a bug causing classic Outlook POP account profiles to hang, though that fix is still pending."}}