security fixes Archives

Winsage

July 21, 2026

Microsoft Confirms WSUS Sync Issue Causing Update Delays and Timeouts

Microsoft has identified synchronization delays and timeout errors affecting Windows Server Update Services (WSUS), which risks the timely delivery of Windows updates. WSUS is a management tool for distributing Windows updates across networks. Microsoft deprecated WSUS in September 2024 but continues to provide security fixes and updates. The synchronization issue has led to failures and delays in downloading update metadata, particularly impacting Windows 11 version 23H2 and later, Windows 10 version 1607, and Windows Server 2012 and later. This issue began around July 13, 2026, with mitigation efforts starting on July 18, 2026. Microsoft has released a partial fix for newly installed or rebuilt WSUS servers, while existing servers may still face challenges. The company is developing additional fixes and guidance. In previous years, Microsoft dealt with other WSUS-related issues affecting enterprise clients.

Winsage

July 20, 2026

Microsoft rushes out Windows fix for Dell’s hot and bothered PCs

Microsoft has released an out-of-band update, KB5121767, to resolve an incompatibility issue affecting certain Dell models, allowing them to receive the July 2026 Windows security patch. This update targets the Intel Innovation Platform Framework drive, which caused performance, power consumption, and system behavior issues. It is applicable for Windows 11 versions 25H2 and 24H2. A separate hotpatch, KB5121768, is available for eligible Windows 11 Enterprise devices. Microsoft paused the Patch Tuesday rollout for the affected models to facilitate this update. The incompatibility was linked to the Intel driver and the Windows USB-C Connection Manager interface introduced in a June 23 preview update. Users experienced slowdowns, overheating, and unexpected shutdowns.

Winsage

July 20, 2026

July 2026 Patch Tuesday: KB5101650 Windows 11 Update

On July 14, 2026, Microsoft released cumulative update KB5101650 for Windows 11 versions 25H2 and 24H2, addressing OS Builds 26200.8875 and 26100.8875. This update includes essential security fixes, updates to Secure Boot certificates, and enhanced Remote Desktop Protocol (RDP) defenses against phishing attacks. It consolidates July 2026's security content, addressing known vulnerabilities and introducing functional improvements. The update is critical for minimizing exposure to identified threats and is prioritized for systems managing remote access or nearing certificate expiration. The update enhances Remote Desktop security by supporting SHA-2 certificate thumbprints while retaining SHA-1 for legacy compatibility. It includes new Group Policy options to mitigate phishing risks associated with malicious .rdp files. The curl upgrade to version 8.21.0 incorporates security patches for command-line tools in Windows environments. Secure Boot certificates are automatically updated through Windows updates, ensuring boot security across various hardware. KB5101650 installs primarily through the Windows Update interface, requiring a restart to activate changes. Enterprise environments can use the Microsoft Update Catalog for manual distribution. A temporary restriction affects certain Dell devices with Intel Innovation Platform Framework drivers, which Microsoft plans to address in a future update. The cumulative update resolves a total of 622 Microsoft CVEs, including 416 affecting Windows components. Users are advised to verify and install the update promptly to secure the full suite of improvements.

Winsage

July 18, 2026

Windows 11 Secure Boot certificates have expired, and Microsoft says what to do next

Microsoft held its OEM Secure Boot Office Hours event on July 15, where engineers collaborated with OEM representatives from companies like Acer, Asus, Cisco, Dell, and HP. IT administrators were able to ask live questions about the Secure Boot 2023 rollout. The discussion thread became a detailed technical record, especially following the expiration of the first certificates three weeks prior. Concerns raised by IT admins included BitLocker recovery loops, stuck confidence ratings, and unhelpful Intune error codes. Key facts include: - Devices offline for long periods will still receive the 2023 certificates upon reconnecting to Windows Update. - Devices with existing 2023 certificates in firmware will switch to the new boot manager after the latest Windows patches are installed. - A new script, Detect-SecureBootCertUpdateStatus.ps1, is available in Windows for checking certificate status. - BIOS updates may reset a device’s confidence rating to unrated, which is normal and does not indicate certificate failure. - Admins should edit the AvailableUpdates registry key, not the AvailableUpdatesPolicy, which is managed by Intune and Group Policy. - A licensing bug affecting AvailableUpdatesPolicy on devices upgraded from Pro to Enterprise was resolved by Microsoft in 2026. - BitLocker recovery is not typically linked to the certificate update process but may relate to firmware or PCR issues. - Dell and HP provided guidance on which BIOS versions include the 2023 certificates for their newer models. - Older HP EliteBook 840 G5 units require a manual update package for the new certificates. - Eligible devices can still receive the 2023 certificates in the future, and Surface devices released from 2024 onward come pre-equipped with them. - Microsoft confirmed that devices running 2011 certificates will not lose the ability to receive the 2023 chain. - The Microsoft Corporation KEK CA 2011 and Microsoft UEFI CA 2011 certificates have expired, with the Microsoft Windows Production PCA 2011 set to expire on October 19, 2026.

Winsage

July 18, 2026

Windows 11’s massive July 2026 update fixes 570 vulnerabilities and shows how AI is quietly reshaping Patch Tuesday itself

Microsoft's July 2026 Patch Tuesday update for Windows 11, identified as KB5101650, addresses 570 vulnerabilities and upgrades Windows 11 to version 25H2 (build 26200.8875) and version 24H2 (build 26100.8875). The update includes critical fixes for BitLocker and File Explorer, targeting vulnerabilities that could enable remote code execution. Microsoft's MDASH tool, which uses AI for vulnerability analysis, has helped uncover 16 vulnerabilities in networking and authentication components. The update also introduces non-security enhancements like Point-in-time restore and improved Bluetooth reliability. Microsoft emphasizes the need for users to install updates quickly due to the rapid evolution of AI technology that benefits malicious actors.

Winsage

July 16, 2026

Windows 10 refuses to die, and the security bill is coming due

Approximately 16.9 percent of monitored Windows devices are still running Windows 10, a decline from about half a year ago. Windows 10 will receive updates until October 12, 2027, for consumer devices and until October 10, 2028, for commercial customers. Small and medium-sized businesses (SMBs) have 21.4 percent of their machines on Windows 10, with 23 percent in healthcare and pharmaceutical sectors and 22.7 percent in consumer and retail. A Windows 10 device has an average of 1,903 active Common Vulnerabilities and Exposures (CVEs), compared to 652 on Windows 11. Only 14 percent of Windows 10 assets have Extended Security Updates (ESU) patches applied. Many devices are tied to vendor certifications that complicate upgrades, and the rising cost of new PC hardware is a concern. The stagnation of Windows 11 adoption continues, with minimal change in market share distribution.

Winsage

July 13, 2026

Microsoft demystifies how Windows updates work

Microsoft has released a guide on the Windows servicing model, detailing monthly security updates, optional preview releases, hotpatch updates, and feature rollout mechanisms. Patch Tuesday occurs every second Tuesday of the month, delivering cumulative security updates to supported Windows versions. For consumers and small businesses, updates are managed through Windows Update, while enterprises can use various tools like Windows Autopatch and WSUS. Hotpatch updates, which focus on security fixes, can be installed without a restart, unlike quarterly baseline updates that require one. Optional non-security preview updates are released in the fourth week of each month for testing upcoming fixes and new features, available only for the latest supported Windows versions. Unmanaged devices can access these updates through Windows Update settings, while IT-managed devices depend on organizational policies. Microsoft also issues out-of-band updates to address urgent issues, which can be deployed through enterprise management tools. New features for Windows 11 are rolled out throughout the year via various channels, with a gradual rollout strategy to monitor quality and compatibility, using the Controlled Feature Rollout approach.

Winsage

July 12, 2026

Microsoft is killing 15 products in 2026, including Windows 11 24H2 and Office 2021

Microsoft will discontinue support for several products in 2026, including: 1. Windows 11 24H2 (Home and Pro) - End of servicing on October 13, 2026. 2. Office 2021 and Office LTSC 2021 - End of support on October 13, 2026. 3. Windows Server 2012 and 2012 R2 - Final ESU year ending on October 13, 2026. 4. SQL Server 2016 - Extended end of support on July 14, 2026. 5. SharePoint Server 2016 and 2019, Project Server 2016 and 2019 - Support ends on July 14, 2026. 6. Microsoft Publisher - Retired after October 2026. 7. Exchange Server 2016 and 2019, Skype for Business Server - Final ESU cutoff on October 31, 2026. 8. Windows 11 Enterprise and Education 23H2, .NET 8, .NET 9, PowerShell 7.4 - End of servicing on November 10, 2026. 9. Windows 10 2016 LTSB and IoT Enterprise LTSB 2016 - Extended support ends on October 13, 2026. 10. Windows 11 SE - Support ends on October 1, 2026. 11. Dynamics CRM 2016 and older versions - Lost support earlier in January 2026. 12. Microsoft Configuration Manager, version 2409 - End of support on June 6, 2026. 13. Visual Studio 2022 LTSC channels, versions 17.10 and 17.12 - End of support in January and July 2026, respectively. 14. InfoPath 2013, SharePoint Designer 2013 - End of support on July 14, 2026. 15. Azure service retirements - Occurring in late 2026. Organizations are advised to review their software landscape and plan for transitions to avoid disruptions.

Winsage

July 11, 2026

AI Threat Forces Microsoft To Update Windows Patch Guidance

Microsoft is advocating for a reevaluation of Windows patch management practices due to the rapid evolution of artificial intelligence (AI) impacting cybersecurity. The company emphasizes that traditional timelines for patch deployment, typically spanning several weeks after the monthly Patch Tuesday, are inadequate against modern cyber threats. Microsoft recommends organizations shorten deployment windows to under three days for quality updates, with immediate installation deadlines and minimal user grace periods. To support these changes, Microsoft is enhancing Windows Autopatch with a new reporting dashboard for patch compliance and security insights. The company is promoting cloud-managed deployment through Microsoft Intune and Windows Autopatch while continuing to support legacy tools. Additionally, Microsoft is introducing Windows Hotpatch technology, allowing security updates to be installed without immediate reboots, and advocating for the use of identity-based access controls to isolate unpatched devices. The guidance reflects a shift from scheduled patching to continuous risk management, encouraging organizations to prioritize high-risk assets and automate update deployments. Microsoft is also investing in AI-assisted vulnerability discovery and automated code analysis to improve defensive capabilities. The overarching message is that enterprises must adapt their update strategies to address the accelerated pace of AI-driven exploitation.

Winsage

July 10, 2026

Microsoft is rewriting Windows patch guidance because of AI

Microsoft advises organizations to expedite their Windows update deployment timelines due to advancements in artificial intelligence that allow cyber attackers to quickly exploit vulnerabilities after security updates are released. Jeremy Chapman, Director of Microsoft 365, warns that delaying critical quality updates with security fixes increases the risk of exploitation. Microsoft recommends a quality update deferral period of fewer than three days, update deadlines of zero or one day, and a grace period of no more than two days. The Windows Autopatch report within Microsoft Intune helps identify unpatched devices, allowing administrators to adjust update deferral policies. Organizations can configure update delivery settings through policy controls in Windows Autopatch and Microsoft Intune, as well as other management tools like Microsoft Configuration Manager and Windows Server Update Services. Microsoft also promotes the use of Hotpatch for quicker installation of security updates without rebooting and encourages Conditional Access policies to restrict access to corporate resources for devices that lack required updates.