Extended Security

Winsage
June 12, 2026
Microsoft released a cumulative update for Windows 10, designated as KB5094127, during the latest Patch Tuesday. Some users are experiencing issues where they are prompted to enter their BitLocker recovery key after installing the update. This problem is linked to systems with an "unrecommended" BitLocker Group Policy configuration and has occurred in previous updates. Specific conditions that can lead to this issue include having BitLocker enabled on the operating system drive, a certain Group Policy setting configured, the System Information tool reporting a specific Secure Boot State, the presence of a particular certificate in the Secure Boot Signature Database, and not using the 2023-signed Windows Boot Manager. Affected users may face difficulties accessing their BitLocker recovery key, potentially leading to lockouts. Microsoft suggests that personal devices are less likely to be affected, with the issue primarily impacting enterprise setups. The company is working on a resolution and advises IT administrators to consider removing the Group Policy configuration before installing the update. Update KB5094127 is available only to Windows 10 users in the Extended Security Updates program for versions 21H2 and 22H2, addressing various bugs and security vulnerabilities.
Winsage
June 10, 2026
Microsoft's latest Patch Tuesday addressed 198 security vulnerabilities, the most extensive update in recent memory. Among these, 32 flaws are classified as critical, and three are zero-day vulnerabilities. The updates are detailed in KB articles: KB5094126 for Windows 11 versions 24H2 and 25H2, KB5093998 for version 23H2, and KB5094127 for Windows 10. The updates will automatically download and install, but users must verify their installation status and reboot their computers for changes to take effect. The vulnerabilities addressed this month are attributed to advancements in artificial intelligence, with companies like Microsoft leveraging AI models to expedite the identification and resolution of security flaws. The three zero-day vulnerabilities include one that allows an attacker to gain Windows System privileges through a flaw in file link resolution, another that could facilitate a denial-of-service attack via an HTTP vulnerability, and a third related to a flaw in Windows BitLocker that could enable data capture from an unpatched PC. Additionally, the update introduces new features to Windows 11, including new Secure Boot certificates, a Low Latency Profile for enhanced performance, support for shared audio devices for multiple Bluetooth connections, webcam functionality across multiple applications, and the ability to assign a custom name to the user folder during setup.
Winsage
June 10, 2026
Microsoft has released the Windows 10 KB5094127 extended security update, which addresses vulnerabilities identified during the June 2026 Patch Tuesday and enhances monitoring of updated Secure Boot certificates. Users on Windows 10 Enterprise LTSC or enrolled in the ESU program can install it via the Windows Update settings. The update upgrades Windows 10 to build 19045.7417 and Windows 10 Enterprise LTSC 2021 to build 19044.7417. It focuses on security enhancements and bug fixes, resolving a total of 200 vulnerabilities, including three zero-day flaws. Key features include improved File Explorer search functionality for Chinese text and UTF-8 encoded files, dynamic status reporting for Secure Boot states, a new policy setting to limit Secure Boot service data sent to Microsoft, and enhanced targeting data for automatic receipt of new Secure Boot certificates. A known issue may cause BitLocker recovery notifications on certain systems, particularly those with specific BitLocker Group Policy settings. Microsoft recommends removing the Group Policy setting and suspending/resuming BitLocker as a temporary fix.
Winsage
June 9, 2026
Operational technology (OT) engineers and plant managers must decide between migrating to Windows 11, opting for Extended Security Updates, or implementing compensating controls as support for Windows 10 ends. Windows 10 Enterprise LTSC 2021 will stop receiving updates on January 12, 2027. A live webinar is available to help organizations develop a strategy for transitioning from Windows 10, addressing security and compliance challenges, key standards, and practical strategies for safeguarding systems. The webinar targets OT engineers, plant managers, OT security leaders, and operations teams in various sectors, aiming to assist them in maintaining operational integrity during the transition.
Winsage
May 28, 2026
Windows Server 2016 has a bug introduced by the May 12 security update that affects servers with hostnames exactly 15 characters long, causing errors in domain controller discovery. Specifically, calling the DCLocator results in an ERRORINVALIDPARAMETER, hindering applications and tools from locating a domain controller. This issue impacts features like Distributed File System (DFS) Namespace management. Microsoft has not provided a workaround but suggests changing the hostname length. Windows Server 2016 is officially supported until January 12, 2027, with extended support options available. Despite representing only 2.2 percent of all Windows devices, it accounts for 20.3 percent of all servers. Additionally, the May 2026 security update has caused installation failures on some Windows 11 devices due to insufficient EFI System Partition size.
Winsage
May 26, 2026
Microsoft will begin the expiration of Secure Boot certificates on most PCs in June, marking the end of a 15-year period of stability. This affects all PCs manufactured before 2023. Users will likely need to perform multiple restarts during the update process, which includes pushing data into firmware and loading a new bootloader. Ignoring the Secure Boot deadline in June 2026 may lead to significant security risks, as Microsoft will stop providing essential boot updates and malware blacklists. The Windows Security App has been updated to help users monitor these changes, and users should check for warnings indicating the status of Secure Boot. It is important for Windows 10 users to ensure they are enrolled in the Extended Security Updates (ESU) program to avoid vulnerabilities.
Winsage
May 14, 2026
Microsoft has released a security update for Windows 10 users, identified as KB5087544, which includes dynamic status reporting for Secure Boot states. Secure Boot certificates, in place for 15 years, are set to expire next month, and Microsoft advises users to update their certificates to avoid security risks. All Windows 10 PCs will require new certificates, but only those in the Extended Security Updates (ESU) program will be eligible for the update. Most Windows 11 devices will also need new certificates, except those purchased in the last two years. Failure to install the new certificates may affect device boot security. The update also addresses a security warning related to Remote Desktop Connection and may prompt some users to enter a BitLocker recovery key after restarting. New certificates will only be issued to devices that show successful update signals, and users should upgrade their Windows Security App to address potential issues. Notifications will be sent once new Secure Boot certificates are installed.
Search