Security update Archives

Winsage

February 26, 2026

Windows 11 February 2026 Update Is Now Available With 3 New Features

Microsoft has released a non-security feature preview update for Windows 11, designated as version KB5077241, which introduces performance and visual enhancements. This optional update is available for all Windows 11 users and is not yet part of the stable channel, with a full release expected on March 10. Key features of the update include: 1. A built-in network speed test accessible via the taskbar, allowing users to evaluate their network connection's performance. 2. Improvements to the taskbar search function, enabling result previews without opening additional windows. 3. Minor system upgrades, including backup and restore options for select Windows Professional devices, new emojis, an updated accounts menu, a built-in system monitor, and a revamped widgets settings menu. 4. Enhancements to printing services, nearby sharing features, and Windows Update, along with new camera settings for supported devices. 5. Performance improvements in File Explorer, including more reliable window opening using shortcuts and the introduction of an "Extract All" option for non-ZIP archived folders. 6. Optimizations in the Network page of File Explorer for better device display and improvements in display responsiveness after sleep.

Winsage

February 24, 2026

Microsoft extends security patching for three Windows products at a price

Support for Windows 10 Enterprise LTSB 2016 and Windows 10 IoT Enterprise 2016 LTSB will end on October 13, 2026, while Windows Server 2016 will reach its end of support on January 12, 2027. Organizations using these products will receive one final monthly security update on the specified dates, after which they will not receive security patches, updates, or technical support. The Extended Security Updates (ESU) program allows organizations to purchase coverage for up to three years beyond the end of support, with pricing starting at a specified amount per device for the first year and doubling for each subsequent year. Windows Server 2016's ESU pricing has not been announced, and Microsoft recommends upgrading to newer Long-Term Servicing Channel releases. In the European Economic Area, Windows 10 users can access ESU until October 14, 2026, without payment or cloud account requirements due to advocacy from Euroconsumers.

Winsage

February 23, 2026

De-Enshittify Windows 11: Microsoft Copilot and AI ⭐

Windows 11 was introduced amid concerns of user experience degradation, termed "enshittification," due to frequent updates and feature changes. Microsoft initially promised to shift from biannual to annual feature updates, but instead adopted a "continuous innovation" model, leading to monthly updates that compromised quality. The introduction of Copilot in early 2023 marked a significant change in strategy, but enterprise customers could delay updates, creating a conflict for Microsoft. In an unusual move, Microsoft released many features of Windows 11 version 23H2 early through a monthly security update, disregarding enterprise needs. The quality of updates declined as AI features were rushed, and the updates, initially called "Moments," became frustrating for users. Microsoft ensured all supported Windows 11 versions received the same features, allowing enterprises to stay on older versions while accessing new features. The Copilot+ PC initiative in mid-2024 aimed to boost hardware sales but created disparities in feature availability. The Recall feature faced backlash over privacy concerns, leading Microsoft to shift it to an opt-in feature. Partial solutions for managing AI features, like Win11Debloat, allow users to remove certain functionalities, including Copilot and Microsoft 365 Copilot, while others require more complex removal processes.

Winsage

February 20, 2026

Announcing Windows 11 Insider Preview Build 28020.1619 (Canary Channel)

Windows 11 Insider Preview Build 28020.1619 has been released to the Canary Channel (KB 5077230). New features include: - Enhanced Cross-Device Resume allows users to continue activities from Android devices on PCs, including support for Vivo Browser and Microsoft Copilot app files. - Narrator customization now lets users control how on-screen elements are announced. - Windows Hello Enhanced Sign-in Security now supports peripheral fingerprint sensors. - Voice Typing introduces a 'Wait time before acting' setting for improved command execution. - A streamlined setup flow for Voice Access has been implemented. - Language support for the Settings Agent has expanded to include German, Portuguese, Spanish, Korean, Japanese, Hindi, Italian, and Chinese (Simplified). - A refreshed SCOOBE screen for reviewing recommended settings has been introduced. - Paint version 11.2601.391.0 includes a freeform rotate feature for enhanced editing control. Features in the Canary Channel are rolled out gradually, and a desktop watermark will be displayed in pre-release builds. A clean install is required to exit the Canary Channel.

Winsage

February 17, 2026

Microsoft Just Patched a Major Security Vulnerability for This Popular Windows App

Recent developments in Notepad have revealed a vulnerability that allows attackers to execute arbitrary code on users' computers through malicious links in Markdown files. This issue arises from the integration of Markdown support, which enables easy formatting of plaintext documents. An attacker could trick a user into clicking a link that launches unverified protocols, leading to the execution of remote files. Microsoft has addressed this vulnerability in the February 2026 security update for Windows. Users can check for this update in the Settings app under "Windows Update." In 2025, Microsoft patched 1,129 bugs in Windows 11, reflecting an increase in vulnerabilities associated with the integration of AI features.

Winsage

February 16, 2026

Windows 11 KB5077181 fixes boot failures linked to failed updates

Microsoft resolved a critical bug affecting some commercial systems running Windows 11 that caused boot failures due to an "UNMOUNTABLEBOOTVOLUME" error. This issue was linked to problematic updates from December 2025 and primarily impacted devices on Windows 11 versions 25H2 and 24H2. The resolution was included in the February 2026 Patch Tuesday update, specifically the Windows 11 KB5077181 security update released on February 10, 2026. An initial fix was provided in the optional update KB5074105 on January 29, 2026. Affected devices experienced failures after installing the January 13, 2026, security update KB5074109. Microsoft recommends that enterprise customers with still unbootable systems contact Microsoft Support for Business for assistance.

Winsage

February 16, 2026

Windows 11 KB5077181 Security Update Causing Some Devices to Restart in an Infinite Loop

Microsoft's security update KB5077181, released on February 10, 2026, for Windows 11 versions 24H2 and 25H2, has caused critical boot failures, leading to infinite restart loops for users. The update addresses 58 vulnerabilities, including six zero-day exploits, and introduces new Secure Boot certificates. Users have reported errors such as “a specified procedure could not be found” and DHCP failures, with installation errors like 0x800f0983 and 0x800f0991 affecting specific hardware. To resolve issues, users are advised to uninstall the update and pause Windows Update. Accessing the Windows Recovery Environment may also be necessary for persistent boot loops. While some users experienced improvements, the overall instability highlights risks associated with updates. Microsoft has not acknowledged any known issues related to this update as of February 15.

Winsage

February 15, 2026

Microsoft Refreshes Secure Boot Certificates via Windows Update

Microsoft will begin rolling out new Secure Boot certificates through Windows Update starting in March 2026, coinciding with the expiration of original certificates from 2011, which will phase out in June 2026. The new certificates include Microsoft Corporation KEK 2K CA 2023, Microsoft UEFI CA 2023, Microsoft Option ROM UEFI CA 2023, and Windows UEFI CA 2023. Not all Windows users will receive the update simultaneously; eligibility will focus on high-confidence devices with strong update histories. Newer PCs sold from 2024 will already have the 2023 Secure Boot certificates, while some devices may require additional firmware updates from their OEMs. PCs that do not receive the new certificates will still boot but will operate with diminished security, increasing vulnerability to exploits and compatibility issues with anti-cheat software and future Windows versions. Users on unsupported Windows versions will not receive the new certificates, leading to heightened security risks after June 2026.

Winsage

February 11, 2026

Microsoft fixes six actively exploited flaws in latest Windows 11 update

Microsoft's February 2026 Patch Tuesday addressed 59 vulnerabilities in Windows 11, with six confirmed as actively exploited. The most critical vulnerability is CVE-2026-21510, a Windows Shell security feature bypass with a CVSS rating of 8.8, allowing attackers to evade warnings by tricking users into opening malicious files. Another significant vulnerability, CVE-2026-21513, also rated at 8.8, affects MSHTML and allows remote attackers to bypass execution prompts through malicious code in HTML or shortcut files. CVE-2026-21514 impacts Microsoft Word and enables adversaries to disable OLE mitigations, posing risks through document-based attacks. Two local privilege escalation vulnerabilities are CVE-2026-21519 in Desktop Window Manager and CVE-2026-21533 in Windows Remote Desktop Services, with CVSS scores of 7.8. CVE-2026-21525 is a denial-of-service vulnerability in Remote Access Connection Manager. The update includes 53 additional vulnerabilities across various Microsoft products and services, with CVE-2026-21531 in Azure SDK rated at 9.8 and CVE-2026-20841 affecting Windows Notepad rated at 8.8. The cumulative update for Windows 11 (KB5077181) also includes enhancements and resolves WPA3 Wi-Fi connectivity issues. Microsoft reminded users of the June 2026 expiration of Secure Boot certificates, which requires timely updates to ensure secure booting. Users can install the updates via Windows Update.

Winsage

February 1, 2026

Microsoft confirms that a stack of bad Windows updates is causing boot issues

Windows 11 is facing significant issues following the January Patch Tuesday, particularly with boot failures on commercial devices. These problems are linked to both the January update and a flawed December update, leading to a "UNMOUNTABLEBOOTVOLUME" Blue Screen of Death (BSOD) error. Microsoft has indicated that devices that did not successfully install the December security update are left in an improper state, which can prevent booting when subsequent updates are attempted. While Microsoft is working on a partial solution to prevent further installations that could cause boot failures, this fix will not resolve issues for devices already affected. The company is investigating the causes of these update failures and their consequences.