Windows 10 users

Winsage
March 12, 2026
In March, Microsoft released cumulative security updates for Windows 10 and Windows 11, with support for certain versions continuing until March 2026. The updates include KB5079466 for Windows 11 version 26H1, KB5079473 for versions 24H2 and 25H2, KB5078883 for version 23H2, and KB5078885 for Windows 10 version 22H2. These updates will be distributed via Windows Update, the Microsoft Update Catalog, and WSUS for enterprise environments. This month, Microsoft combined the Servicing Stack Update (SSU) with the Latest Cumulative Update, simplifying the update process. Key enhancements include improvements to Secure Boot, with expanded device target data for new certificates, and security enhancements for Explorer’s search functionality in Windows 11 versions 24H2 and 25H2. A fix for Windows Defender Application Control (WDAC) was also implemented, addressing issues with COM objects under certain policy configurations. The Windows System Image Manager received a new warning dialog for confirming the trustworthiness of catalog files, which is important for enterprise environments. Updates for Windows 10 22H2, despite its end-of-life status, included fixes for secure boot issues and improvements for file version history in the Control Panel. An SSU for Windows 11 (KB5077869) was also released to maintain update stability. Microsoft's updates scheduled for March 2026 will address vulnerabilities in components like the Windows App Installer, SQL Server, and Microsoft Office. The Security Update Guide provides detailed information on specific vulnerabilities and affected components.
Winsage
March 7, 2026
Recent discussions about a potential subscription-based, AI-centric operating system from Microsoft have caused concern among Windows users, particularly with rumors of Windows 12's imminent arrival. Brad Chacos from PCWorld clarified that the original German article fueling these rumors lacked credible sources, leading to misinformation. Microsoft has confirmed its commitment to Windows 11, as shown in its Windows Roadmap, which focuses on refining the current OS rather than introducing Windows 12 soon. The article incorrectly claimed that Windows 12 would have an AI-driven modular architecture linked to Microsoft's CorePC initiative, which may have been abandoned. Additionally, data from the February 2026 Steam Hardware Survey indicated a 12% increase in Windows 10 users and a 10% decrease in Windows 11 users, suggesting challenges in managing two operating systems and complicating the introduction of a third.
Winsage
March 7, 2026
Every Secure Boot-enabled Windows PC relies on cryptographic certificates issued by Microsoft in 2011, embedded in the motherboard's firmware, to ensure a secure boot process. The first of these certificates will expire on June 24, 2026, which will affect the ability to receive future security updates for critical components of the Windows startup process. Microsoft is rolling out replacement certificates through Windows Update, marking a significant security maintenance effort. Secure Boot operates as a chain of trust with certificates stored in the motherboard's UEFI firmware, validating software before the operating system loads. The Platform Key (PK) is at the top of this chain, followed by the Key Exchange Key (KEK) and the Signature Database (DB). The replacement certificates introduced in 2023 restructure certificate management, separating responsibilities among different certificate authorities to enhance the trust model. Not all PCs are affected by the upcoming expiration; newer devices manufactured since 2024 already have the new certificates. Windows 10 users face challenges as support for this version ends in October 2025, and they will not receive the new certificates unless enrolled in Extended Security Updates. Home users should ensure their PCs are set to receive updates automatically, while enterprise environments require coordination for firmware updates before the Windows certificate update.
Winsage
March 6, 2026
Every Secure Boot-enabled Windows PC relies on cryptographic certificates issued by Microsoft in 2011 for boot process integrity. The first of these certificates will expire on June 24, 2026, impacting the ability to receive future security updates. Microsoft is rolling out replacement certificates through Windows Update, requiring collaboration between Microsoft, PC manufacturers, and users. Three critical certificates will expire: the Microsoft Corporation KEK CA 2011 and Microsoft UEFI CA 2011 in June 2026, and the Microsoft Windows Production PCA 2011 in October 2026. The new certificates introduced in 2023 have a restructured functionality to enhance security. Not all PCs are affected; newer devices manufactured since 2024 come with the new certificates. Windows 10 users face challenges as support ends in October 2025, and unsupported devices will not receive updates. Home users should ensure automatic Windows updates and check for firmware updates, while enterprise environments must verify firmware updates before applying certificate updates. The first certificate expiration is on June 27, 2026.
Winsage
March 6, 2026
Microsoft addressed an issue in the Windows Recovery Environment (WinRE) that arose after the final update for Windows 10 on October 14, 2025, which disrupted WinRE functionality on some devices. The same update also caused accessibility issues for USB devices in Windows 11's recovery environment. Microsoft released an out-of-band patch, but some Windows 10 users continued to experience WinRE problems. The fix, KB5068164, targets Windows 10 versions 21H2 and 22H2 and aims to resolve the issue preventing WinRE from starting after the October 14 update. Concerns about Microsoft's quality control have been raised due to the timing of the failure and the delay in providing a solution. Users of Windows 10 can rely on Microsoft's Extended Security Updates program, although the situation has caused doubts about the reliability of Microsoft's updates.
Winsage
February 12, 2026
Microsoft's February Patch Tuesday update addresses feature and security bugs, continuing the refresh of Secure Boot certificates to protect against bootkit malware. Secure Boot prevents malicious software from executing during startup by using trusted certificates, many of which are set to expire in June. The update is available for both Windows 11 and Windows 10 users, with the latter needing to be enrolled in the Extended Security Updates (ESU) program until October 2026. Windows 11 fixes include resolutions for full-screen gaming and WPA3-Personal Wi-Fi connectivity issues, while Windows 10 improvements address Chinese fonts, specific graphics processing units, and custom folder names in File Explorer. A bug causing unexpected restarts in Secure Launch-compatible PCs has also been fixed. The update includes 55 security patches, a decrease from January's 114, with two classified as critical and six identified as zero-day vulnerabilities. One vulnerability exploited in the wild could allow system privilege escalation, another could disrupt network connectivity, and a third could disable security controls and access sensitive data. Users can update their Windows 11 PCs through System > Windows Update, and Windows 10 users through System > Update & Security. Due to previous buggy updates, users may consider waiting a few days before installing the February update, with the option to uninstall if issues arise.
Winsage
February 10, 2026
Microsoft is enhancing the security of Windows devices by replacing boot-level security certificates that are nearing expiration, with this initiative integrated into regular Windows platform updates. The original Secure Boot certificates from 2011 will expire between June and October 2026, prompting Microsoft to issue new certificates in 2023, which are included in many new Windows devices sold since 2024. Older hardware will require updates to remain compliant. Devices with expired certificates will continue to operate but will enter a "degraded security state," potentially hindering future updates and causing compatibility issues. The new Secure Boot certificates rollout began with the Windows 11 KB5074109 update. Most Windows 11 users will have the new certificates installed automatically, while specialized systems may have different update protocols. Windows 10 users must enroll in Microsoft’s Extended Security Updates to receive the new certificates.
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