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[SITUATION] · [QUIET] · [TECHNOLOGY]
17 clusters · 136 sources · 64 days · First seen · Last updated
Windows 11 software and security issues
Overview
Windows 11 users continue to navigate technical instabilities following the September 2026 cumulative update, KB5124008. While this patch resolved previous black desktop and taskbar freeze issues, it introduced several new complications. In response to widespread reports of Remote Desktop Services (RDS) failures, USB audio device errors, and Hyper-V virtualization bugs, Microsoft released an emergency out-of-band update, KB5129195. This patch addresses RDS connection instabilities and a privilege escalation vulnerability (CVE-2026-62721). It also targets Hyper-V bugs where Linux virtual machines using the Plan 9 protocol could not access shared host folders, and resolves audio failures affecting 3D and 8-channel modes on USB Audio Class 1.0 devices. Microsoft has confirmed that these updates may cause audio malfunctions on certain PCs using the USB Audio Class 1.0 standard, including total sound loss or ‘This device cannot start (Code 10)’ errors. Additionally, some users have reported ‘UNMOUNTABLE_BOOT_VOLUME’ errors following the emergency fix. Microsoft is also investigating reports that KB5124008 causes Active Directory domain trust failures in enterprise environments due to ‘Machine Identity Isolation’. New complications have emerged regarding black screen issues where the desktop fails to load after signing in. This problem primarily affects Azure Virtual Desktop (AVD) hosts using FSLogix profile management technology, often involving Windows Explorer process crashes. Microsoft is utilizing a Known Issue Rollback (KIR) policy via Group Policy to disable the problematic changes until permanent fixes are released. With the general availability of Windows 11 version 26H2, Microsoft has identified these black screen errors, USB audio failures, and domain trust issues as known bugs that remain mitigated but not yet permanently resolved. Microsoft has now officially confirmed a technical issue in update KB5124010 (Build 26300.9550) that causes applications to crash when using the system’s integrated AC-3/Dolby Digital audio decoder.
Entities
Microsoft · Windows 11 · Windows 11 · ARC Raiders · THE FINALS
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 7 SOURCES] Microsoft released an emergency out-of-band update for Windows 11 to address issues caused by the September security patch. www.topgadget.com.br · japan.zdnet.com · news.mynavi.jp · www.bild.de · trend.dk · +2 more
- [● 7 SOURCES] The KB5129195 update addresses Remote Desktop Services instability and login failures. www.topgadget.com.br · japan.zdnet.com · news.mynavi.jp · genk.vn · trend.dk · +2 more
- [● 6 SOURCES] The update addresses audio issues affecting USB Audio Class 1.0 devices, specifically fixing multi-channel audio failures. japan.zdnet.com · news.mynavi.jp · cybernoz.com · www.topgadget.com.br · www.bild.de · +1 more
- [● 6 SOURCES] The patch resolves issues with Hyper-V virtual machines using the Plan 9 operating system when sharing folders with a host. japan.zdnet.com · news.mynavi.jp · www.topgadget.com.br · genk.vn · trend.dk · +1 more
- [● 4 SOURCES] Microsoft is investigating reports that the KB5120998 update causes mouse cursor personalization settings to revert to standard settings. au.pcmag.com · www.zdnet.com · au.lifehacker.com · uk.pcmag.com
- [● 4 SOURCES] The KB5120998 update includes features to reposition and move the Taskbar. au.pcmag.com · www.zdnet.com · au.lifehacker.com · uk.pcmag.com
- [● 3 SOURCES] The KB5120998 update was released on August 27. www.zdnet.com · hothardware.com · au.lifehacker.com
- [● 3 SOURCES] A bug in the update can cause Windows to incorrectly report that Microsoft Defender Antivirus is turned off. au.pcmag.com · hothardware.com · uk.pcmag.com
- [● 3 SOURCES] Microsoft released the September 2026 Patch Tuesday updates. www.chiccheinformatiche.com · www.punto-informatico.it · www.it-connect.fr
- [● 3 SOURCES] A compact taskbar mode is available to reduce height and icon size. www.chiccheinformatiche.com · www.punto-informatico.it · www.it-connect.fr
Timeline
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[TECHNOLOGY] 11 sourcesMicrosoft confirms Windows 11 audio bug in update KB5124010
Microsoft confirmed that Windows 11 update KB5124010 causes apps and games to crash when using AC-3/Dolby Digital audio decoding. A fix is expected in a future update.
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[TECHNOLOGY] 4 sourcesMicrosoft confirms Windows 11 black screen issue
Microsoft confirmed a Windows 11 bug causing black screens or desktop loading failures, primarily affecting Azure Virtual Desktop users with FSLogix. A Known Issue Rollback is being deployed.
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[TECHNOLOGY] 10 sourcesMicrosoft Windows 11 update breaks Active Directory domain trust
A Windows 11 security update (KB5124008) is breaking Active Directory domain trust, preventing enterprise users from logging in. Microsoft recommends disabling Machine Identity Isolation as a workaround.
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[TECHNOLOGY] 2 sourcesMicrosoft reports Windows 11 audio bugs and end of support
Microsoft reports Windows 11 audio issues caused by September 2026 updates and announces the end of support for Windows 11 24H2 Home and Pro editions in October 2026.
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[TECHNOLOGY] 12 sourcesMicrosoft releases emergency Windows 11 update to fix security patch errors
Microsoft issued an emergency out-of-band update (KB5129195) for Windows 10 and 11 to fix Remote Desktop, Hyper-V, and USB audio issues caused by a previous September security patch.
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[TECHNOLOGY] 7 sourcesMicrosoft fixes Windows 11 black desktop bug but reports new audio and virtual machine issues
Microsoft has fixed a Windows 11 bug causing black desktop backgrounds via update KB5124008, but the same update has introduced new issues with USB audio and Linux virtual machine folder access.
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[TECHNOLOGY] 10 sourcesMicrosoft releases September 2026 Windows 11 updates
Microsoft's September 2026 updates bring major Windows 11 features like movable taskbars and AI-driven security patches, but have caused Remote Desktop Service failures on Windows Server.
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[TECHNOLOGY] 14 sourcesMicrosoft releases major Windows 11 update with security fixes and UI changes
Microsoft's September 2026 Windows 11 update (KB5124008) fixes nearly 1,000 vulnerabilities and introduces major UI changes, including movable taskbars and customizable Start menus.
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[TECHNOLOGY] 2 sourcesMicrosoft Windows 11 updates cause desktop errors and system instability
Windows 11 updates are causing widespread desktop errors, including system freezes, black screens, and broken customization settings for mouse cursors and wallpapers.
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[TECHNOLOGY] 3 sourcesMicrosoft Windows 11 ARM update breaks Teams and New Outlook
Microsoft security updates (KB5121003) are causing Microsoft Teams and New Outlook to crash on Windows 11 ARM-based PCs. Users can mitigate the issue by installing the Auto Super Resolution Package.
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[TECHNOLOGY] 13 sourcesMicrosoft to enable Windows 11 Memory Integrity by default
Microsoft will automatically enable Memory Integrity security on compatible Windows 11 devices starting October 2026, a move that enhances kernel protection but may impact gaming performance on some hardware.
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[TECHNOLOGY] 13 sourcesMicrosoft investigates Windows 11 update bugs
Microsoft is investigating bugs in the Windows 11 KB5120998 update that cause mouse cursor glitches, black wallpapers, and false antivirus warnings.
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[TECHNOLOGY] 2 sourcesMicrosoft fixes Windows 11 game crashes caused by RGB lighting drivers
Microsoft has released a fix for Windows 11 users experiencing game crashes and system reboots caused by conflicts with RGB lighting drivers, specifically the ‘inpoutx64.sys’ component.
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[TECHNOLOGY] 30 sourcesMicrosoft identifies RGB lighting driver conflict causing Windows 11 game crashes
Microsoft reports that the Windows 11 August update (KB5121003) causes game crashes and reboots due to conflicts with RGB lighting drivers, specifically those named similarly to ‘inpoutx64’.
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[TECHNOLOGY] 27 sourcesMicrosoft investigates Windows 11 update causing gaming crashes
A Windows 11 security update (KB5121003) is causing game crashes and system restarts, likely due to conflicts with RGB lighting device drivers like inpoutx64.sys. Microsoft is investigating.
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[TECHNOLOGY] 26 sourcesMicrosoft investigates Windows 11 update causing game crashes
Microsoft is investigating Windows 11 update KB5121003, which has caused game crashes and system reboots. Additionally, recent updates have caused Microsoft Defender antivirus scans to fail.
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[TECHNOLOGY] 3 sourcesWindows 11 troubleshooting: fixing Defender and stopping automatic driver updates
Windows 11 users can restore Defender by restarting services, updating Windows, or running SFC scans, and can stop automatic driver updates via system settings, group policy, or registry tweaks.
Sources
4gnews.pt · 4sysops.com · ad-hoc-news.de · administrator.de · adslzone.net · altroconsumo.it · arenait.net · atmarkit.co.jp · au.pcmag.com · automaton-media.com · bigportal.ba · bild.de · blogspan.net · borncity.com · chiccheinformatiche.com · chip.com.tr · chip.cz · chip.de · congnghe.vn · coolmagazin.com · ct.nl · cybernoz.com · dagens.no · dailyguardian.ae · davescomputertips.com · deskmodder.de · digitaltrends.com · dirks-computerecke.de · dobreprogramy.pl · donanimhaber.com · eloutput.com · eurogamer.pt · finanznachrichten.de · frandroid.com · game.techbang.com.tw · gamemag.it · gamesite.zoznam.sk · geekinout.pt · geekyalgeria.com · genk.vn · giga.de · gigamaus.de · gigazine.net · ginjfo.com · go4it.ro · gr.pcmag.com · gratissoftwaresite.nl · hartware.de
This summary has been updated 29 times: see revision history