security updates Archives

Winsage

April 28, 2026

Incomplete Windows Patch Creates New Zero-Click Attack Risk

A new vulnerability in Microsoft Windows, designated as CVE-2026-32202, has been discovered due to an incomplete security patch for a previous flaw (CVE-2026-21510). This new vulnerability allows attackers to execute zero-click attacks by processing specially crafted shortcut files, enabling automatic authentication requests without user interaction. The vulnerabilities are linked to another flaw (CVE-2026-21513) in Microsoft’s MSHTML framework, and cybercriminals, specifically the APT28 group, have exploited these issues in attacks against Ukraine and the European Union. Microsoft has released a fix for the new vulnerability in its April 2026 security updates.

Winsage

April 28, 2026

Microsoft Releases Enterprise Policy Option to Disable Windows 11 Copilot

Microsoft has introduced a new enterprise policy setting that allows IT administrators to silently uninstall the Microsoft Copilot app from managed Windows 11 devices. The RemoveMicrosoftCopilotApp policy became available after the April 2026 Patch Tuesday security updates and is compatible with enterprise management solutions like Microsoft Intune and System Center Configuration Manager (SCCM). Administrators can find the policy in the Group Policy Editor under User Configuration > Administrative Templates > Windows AI > Remove Microsoft Copilot App. It specifically targets Windows 11 Pro, Enterprise, and Education SKUs, excluding Home edition users. The uninstallation process is triggered when three conditions are met: Microsoft 365 Copilot is installed on the device, it was provisioned (not user-installed), and it has not been launched by the user in the last 28 days. The policy was initially available for Windows Insiders in January 2026 and became generally accessible afterward. However, future updates or user reinstalls from the Microsoft Store may reintroduce the Copilot app, necessitating ongoing policy enforcement for permanent removal. Organizations seeking broader exclusion may need to use PowerShell scripts or additional MDM configurations.

Winsage

April 27, 2026

Using Windows or Microsoft Office? India issues high-severity cyber alert, how to stay safe

India’s cybersecurity agency, CERT-In, has issued an advisory regarding high-severity vulnerabilities in various Microsoft products, including multiple versions of Windows, Windows Server, Microsoft Office, and the Chromium-based Microsoft Edge browser. These vulnerabilities can allow attackers to execute malicious code, elevate system privileges, access sensitive data, or disrupt services. They arise from issues such as improper input validation, memory corruption, insufficient access control, and inadequate memory object handling. Exploitation can occur remotely or locally, sometimes requiring user interaction. CERT-In advises users and organizations to apply the latest security updates from Microsoft to mitigate these risks.

Winsage

April 27, 2026

Microsoft Adds Policy to Let IT Admins Uninstall Copilot From Enterprise Windows 11 Devices

Microsoft has introduced a policy allowing IT administrators to remove the Microsoft Copilot app from managed enterprise devices. This "Remove Microsoft Copilot App" policy will be available as a Policy CSP and Group Policy after the April 2026 Windows security updates for Windows 11 devices on the 25H2 update, specifically for Enterprise, Professional, and Education editions. The policy will uninstall Copilot under certain conditions: both Microsoft 365 Copilot and Microsoft Copilot must be installed, the user must not have manually installed the app, and the app must not have been launched in the past 28 days. Administrators can enable the policy through the Group Policy Editor or configure it via Microsoft Intune and SCCM after the April 2026 updates. The policy aligns with Microsoft's recent changes in managing Copilot, including the cessation of automatic installations and the cancellation of plans to integrate Copilot into system notifications and other features. The policy was initially available to Windows Insiders in January before becoming generally accessible in April 2026.

Winsage

April 25, 2026

In France they “buried” Windows 10 at the Microsoft office

On April 24, a protest organized by environmental and consumer advocacy groups took place outside the Microsoft France office in Paris to oppose the company's decision to discontinue support for the Windows 10 operating system. Activists claim this could lead to the obsolescence of approximately 300 million computers worldwide, resulting in 58 million tons of carbon dioxide emissions and significant depletion of raw materials. Consumers may face an average cost of €600 for new devices if they upgrade. Experts warn users must choose between expensive new hardware or risking financial fraud due to lack of security updates. The organization Halte à l'Obsolescence Programmée is gathering signatures for a petition advocating for a mandatory 15-year software support period. Public advocacy previously convinced Microsoft to extend its software update releases by an additional 12 months. The protest aims to raise awareness and apply pressure until the end of October.

Winsage

April 22, 2026

Google and Back Market Launch $3 ChromeOS Flex USB Kit for Windows 10 Users Locked Out of Windows 11

Google has launched a physical ChromeOS Flex USB Kit, priced at a modest amount, to support users on Windows 10 whose hardware does not meet Windows 11 requirements. This kit, developed with Back Market, is part of a pilot program with limited stock. The kit includes printed guides and video tutorials for installing ChromeOS Flex, which is available for free download. ChromeOS Flex allows devices to boot in under 10 seconds and primarily supports web browsing and cloud-based applications, but does not support Android applications. It consumes approximately 19 percent less energy than similar systems and aims to extend the lifespan of existing devices to reduce electronic waste. The kit is available through Back Market, but future production and pricing details have not been disclosed.

Winsage

April 22, 2026

Microsoft to End Support for Windows Server 2016 in 2027

Support for Windows Server 2016 will officially end on January 12, 2027, ceasing security updates and bug fixes. Microsoft recommends upgrading to Windows Server 2019 or later to maintain support and security. Businesses are advised to assess their IT infrastructure and develop a migration strategy to ensure continuity and security. Engaging with IT professionals is recommended for managing the transition effectively.

Winsage

April 20, 2026

Emergency Update for Windows Server Following Reboot Issues

Microsoft has released emergency updates for various versions of Windows Server due to issues arising from the April 2026 Patch Tuesday security updates. A significant problem was a reboot loop affecting domain controllers caused by crashes of the Local Security Authority Subsystem Service (LSASS), which disrupted authentication services. This issue was especially problematic during the setup of new domain controllers. Additionally, some Windows Server 2025 systems encountered difficulties in installing the security update KB5082063. The out-of-band update (KB5091157) for Windows Server 2025 addresses both the installation failure and the domain controller restart issue. Other updates targeting the domain controller restart problem were released for additional supported Windows Server versions. Microsoft has introduced an out-of-band update for seven versions, including KB5091157 for Windows Server 2025 and KB5091571 for Windows Server, version 23H2. Furthermore, some Windows Server 2025 devices may boot into BitLocker recovery mode after the update, requiring users to enter a BitLocker recovery key.

Winsage

April 20, 2026

Microsoft releases emergency updates to fix Windows Server issues

Microsoft has confirmed that some administrators are experiencing difficulties installing the KB5082063 security update on Windows Server 2025. This month's Patch Tuesday updates have caused certain Windows servers, especially those with domain controller roles, to enter a restart loop due to failures in the Local Security Authority Subsystem Service (LSASS). Microsoft has released emergency out-of-band updates, including KB5091157 for Windows Server 2025, to address both the installation failure and the restart issues. Additionally, some Windows Server 2025 devices may boot into BitLocker recovery mode after installing the KB5082063 update. A bug affecting Windows Server 2019 and Windows Server 2022 that caused unexpected upgrades to Windows Server 2025 has also been resolved. Microsoft has issued various emergency updates throughout the year to address other issues, including a Bluetooth device visibility bug and vulnerabilities in the Routing and Remote Access Service (RRAS).

Winsage

April 19, 2026

Windows Defender Security Flaws Actively Exploited by Hackers

Three vulnerabilities in Microsoft Defender, known as BlueHammer (CVE-2026-33825), RedSun, and UnDefend, are being actively exploited by hackers. BlueHammer has been patched, while RedSun and UnDefend remain unpatched. The public release of exploit code has accelerated real-world attacks, affecting Windows 10, Windows 11, and Windows Server systems. Attackers have begun exploiting these vulnerabilities, leading to concerns about privilege escalation, disruption of security updates, and the rapid spread of attacks.