security updates

Winsage
September 25, 2026
The September update for Windows 11 caused significant disruptions, including failures in USB audio functionality and the File History feature. This follows a trend of issues over the past months, with August experiencing printer and PDF problems, July affecting certain Dell PCs, and June reporting startup issues and BitLocker recovery failures. In total, eight out of nine months this year have had at least one major issue. A recurring BitLocker user lockout problem has also been noted. Despite these issues, Windows 11 has improved in overall stability, with fewer system crashes. Windows 10 has maintained stability by focusing solely on security updates since support ended in October 2025, avoiding new feature rollouts. Users satisfied with Windows 10's features may prefer to stay with it for stability. Windows 11 users facing instability can roll back updates or use the Known Issue Rollback feature to revert problematic non-security features.
Winsage
September 25, 2026
Microsoft has released the KB5124010 September 2026 non-security preview update for Windows 11 versions 24H2 and 25H2, introducing 46 enhancements, including improvements to Bluetooth functionality and the ability to remap the Copilot key. This update is optional and focuses on quality improvements without security fixes. Key features include support for Emoji 17.0, a new accessibility setting for maximizing app windows, and a recovery remote management plug-in. Bluetooth issues have been addressed, including crashes related to audio streaming and microphone compatibility. Users can remap the Copilot key to function as the Right Ctrl or Context Menu key. The update elevates Windows 11 25H2 and 24H2 devices to builds 26200.9550 and 26100.9550, respectively. Other highlights include the ability to use slideshow wallpapers across multiple desktops, enhanced gesture controls for precision touchpads, and a Camera roll backup feature for OneDrive. Microsoft has fixed a known issue with the File History backup feature and removed the PC-to-PC Migration tool, recommending Windows Backup instead. KB5124010 is the last preview update for Windows 11 24H2, which will reach end of support in October 2026.
AppWizard
September 24, 2026
GrapheneOS has announced that the Motorola Signature 27 will be its first supported device from Motorola. This decision was confirmed on social media, with GrapheneOS stating it would be the initial supported phone. The Signature 27 features Qualcomm’s Snapdragon 8 Elite Extreme Gen 6 chip and promises seven years of operating system and security updates. Key features include hardware memory tagging and enhanced secure-element integration. GrapheneOS aims to provide alternatives to Google’s Pixel phones while focusing on privacy and security. The announcement follows challenges GrapheneOS faced with Google regarding the Pixel 11 and access to certain Android APIs. Additionally, GrapheneOS is revamping its software ecosystem, including updates to its Messaging app and new privacy features.
Winsage
September 24, 2026
Microsoft has informed IT administrators about potential connection challenges with the Always On VPN after the September 2026 Windows 11 security updates. Users may face difficulties connecting to their organization's network, particularly if the VPN is set to automatically attempt an alternative connection method upon failure. Symptoms include connections remaining in a 'Connecting' state or displaying the error message: 'The specified port is already in use.' Affected versions include Windows 11, version 26H1 (KB5124012), version 25H2 (KB5124008), and version 24H2 (KB5124008). A temporary workaround involves adjusting the Always On VPN profile from automatic protocol selection to a single protocol (SSTP or IKEv2). Microsoft is also addressing various other issues related to Hyper-V, Remote Desktop Services, USB audio, and the File History backup feature.
Winsage
September 23, 2026
Security researcher Abdelhamid Naceri, known as Nightmare Eclipse, released a zero-day exploit called BigDiskBuster that targets Microsoft Defender, preventing antivirus updates and leaving systems vulnerable. BigDiskBuster operates across all supported Windows versions and must run in the background to block updates. Naceri has previously released a similar exploit called UnDefend and has a history of releasing multiple zero-day exploits since April 2026 amid a dispute with Microsoft. Two weeks before BigDiskBuster, he introduced another exploit named ShieldCrash, which grants SYSTEM access and circumvents a patched flaw. Naceri's recent exploits include tools like LegacyHive, BlueHammer, RedSun, YellowKey, GreenPlasma, and MiniPlasma, all targeting Microsoft Defender and other Windows components. Microsoft has warned of potential legal action against malicious activities but has not commented on BigDiskBuster.
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