Microsoft issues emergency Windows 11 update to fix its record-breaking patch | The VergeSkip to main contentThe homepageThe VergeThe Verge logo.The VergeThe Verge logo.TechReviewsScienceEntertainmentAIPolicyNotificationsNotificationsHamburger Navigation ButtonThe homepageThe VergeThe Verge logo.NotificationsNotificationsHamburger Navigation ButtonNavigation DrawerThe VergeThe Verge logo.Login / Sign UpcloseCloseSearchLightSystemDarkTechExpandAmazonAppleFacebookGoogleMicrosoftSamsungBusinessSee all techReviewsExpandSmart Home ReviewsPhone ReviewsTablet ReviewsHeadphone ReviewsSee all reviewsScienceExpandSpaceEnergyEnvironmentHealthSee all scienceEntertainmentExpandTV ShowsMoviesAudioSee all entertainmentAIExpandOpenAIAnthropicSee all AIPolicyExpandAntitrustPoliticsLawSecuritySee all policyGadgetsExpandLaptopsPhonesTVsHeadphonesSpeakersWearablesSee all gadgetsVerge ShoppingExpandBuying GuidesDealsGift GuidesSee all shoppingGamingExpandXboxPlayStationNintendoSee all gamingStreamingExpandDisneyHBONetflixYouTubeCreatorsSee all streamingTransportationExpandElectric CarsAutonomous CarsRide-sharingScootersSee all transportationFeaturesVerge VideoExpandTikTokYouTubeInstagramPodcastsExpandDecoderThe VergecastVersion HistoryNewslettersArchivesStoreVerge Product UpdatesSubscribeFacebookThreadsInstagramYoutubeRSSThe VergeThe Verge logo.Microsoft issues emergency Windows 11 update to fix its record-breaking patchNotificationsNotificationsComments DrawerNotificationsCommentsLoading commentsGetting the conversation ready...NewsCloseNewsPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All NewsTechCloseTechPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All TechMicrosoftCloseMicrosoftPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All MicrosoftMicrosoft issues emergency Windows 11 update to fix its record-breaking patchThe out-of-band update fixes Remote Desktop, USB audio, and Hyper-V issues.The out-of-band update fixes Remote Desktop, USB audio, and Hyper-V issues.by Tom WarrenCloseTom WarrenSenior CorrespondentPosts from this author will be added to your daily email digest and your homepage feed.FollowFollowSee All by Tom WarrenSep 15, 2026, 8:54 AM UTCLinkShareGiftImage: The VergeTom WarrenCloseTom WarrenPosts from this author will be added to your daily email digest and your homepage feed.FollowFollowSee All by Tom Warren is a senior correspondent and author of Notepad, who has been covering all things Microsoft, PC, and tech for over 20 years.Microsoft has started rolling out an emergency out-of-band update to fix problems with its record-breaking September patch Tuesday update. The software giant patched nearly 1,000 flaws in its biggest update ever this month, but it also introduced some bugs that have affected businesses, developers, and gamers.The September patch Tuesday affected folder shares on Hyper-V-based Linux virtual machines, Remote Desktop Services sessions, and some USB audio devices. Microsoft’s out-of-band update, released yesterday, addresses these issues across Windows 11 versions 26h1, 25H2, and 24H2. Microsoft has also released updates for Windows Server 2025 and 2022, the LTSC versions of Windows 10, and Windows Server 2012 and Windows Server 2012 R2.In the past it was unusual for Microsoft to issue out-of-band updates to Windows, but it has become far more common this year. In January, the company was forced to issue four out-of-band updates after a buggy Windows 11 patch. In March, the company then had to issue two emergency updates because of installation failures and Microsoft account sign-in problems. 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Microsoft deployed an emergency out-of-band update to resolve issues stemming from its record-breaking September patch Tuesday update, which introduced several bugs affecting various system components. This update specifically addresses problems related to folder shares on Hyper-V-based Linux virtual machines, Remote Desktop Services sessions, and certain USB audio devices. The fix was rolled out across multiple Windows 11 versions, specifically 26h1, 25H2, and 24H2. Furthermore, Microsoft extended this corrective action to include updates for Windows Server 2025 and 2022, the Long-Term Servicing Channel (LTSC) versions of Windows 10, and Windows Server 2012 and 2012 R2.

This action highlights a growing trend of Microsoft issuing out-of-band updates, which has become more frequent this year compared to previous periods. Historically, Microsoft has issued such updates in response to software issues; for instance, in January, the company was compelled to issue four out-of-band updates following a buggy Windows 11 patch. Earlier incidents included two emergency updates in March due to installation failures and Microsoft account sign-in problems, and an update in July to address an Intel driver issue that caused performance degradation and battery drain. This recent emergency update demonstrates an increased reliance on out-of-band patching to address critical flaws impacting both consumer and enterprise environments.