Windows security updates

Winsage
July 24, 2026
This week, Meta experienced a global outage affecting Facebook users, followed by Microsoft facing performance issues with its M365 services, including Teams and SharePoint. Microsoft also reported difficulties with Azure, impacting Windows 11 updates and the Microsoft Store. The issues began around 11:15 AM PST on July 23, 2026, with a notification to users about the Azure outage affecting Windows Update and related services. Microsoft initiated recovery efforts and by 1:45 PM PST, announced that the issues were resolved and services were restored. Currently, there are no ongoing issues reported on the Microsoft Service Health Status page, but the incident is documented on the Windows Release Health page.
Winsage
July 16, 2026
Microsoft has released its July 2026 Patch Tuesday updates, addressing 570 new security vulnerabilities, bringing the total for the month to over 620. The cumulative count of vulnerabilities patched this year has reached 1,380, exceeding the total of 1,250 for the entire year of 2020. Over 400 vulnerabilities are related to various versions of Windows, and the Windows 10 Extended Security Update program has been extended until October 12, 2027. Notable vulnerabilities include CVE-2026-56155 in Active Directory Federation Services, which allows attackers to gain administrator rights, and several critical Remote Code Execution vulnerabilities, including CVE-2026-57092 in Hyper-V and CVE-2026-56190 in Remote Desktop Protocol. Microsoft has also patched 97 vulnerabilities in Office products, with 17 classified as critical RCE vulnerabilities, and four vulnerabilities in Exchange Server, including CVE-2026-55008. The latest Microsoft Edge update addresses 27 vulnerabilities related to Chromium, and a vulnerability in Minecraft Bedrock servers has been patched.
Winsage
July 11, 2026
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
June 8, 2026
Microsoft has rolled out new Defender patches for Windows 11 ISOs, aligning with its commitment to security updates. Updates for Microsoft Defender for Endpoint's endpoint detection and response (EDR) will no longer be included with monthly Windows security updates or Patch Tuesdays; they will now be delivered via Microsoft Update. This change aims to allow faster deployment of EDR enhancements independently of the operating system's update cycle. The rollout for Windows 10 began in late May 2026, with plans to extend support to Windows 11 and other versions by fall 2026. EDR updates will be delivered using KB5005292, contingent on prerequisite updates. Systems must run Sense version 10.8798.25857.1000 or later and have specific Windows updates installed to qualify for the new delivery method. Organizations should align their update policies with this new approach before the broader rollout. In case of significant issues, the EDR update can be reverted using a specific command. Further details are available in the Microsoft 365 Admin Center under message ID MC1381119.
Winsage
May 18, 2026
Microsoft has acknowledged a significant issue with the May 2026 Windows 11 security update, KB5089549, where users are encountering difficulties in installation, specifically the 0x800f0922 error code. This issue is primarily due to insufficient free space on the EFI System Partition (ESP), especially for devices with 10 MB or less available. The installation may fail during the reboot phase at around 35–36% completion, with users receiving notifications like "Something didn't go as planned. Undoing changes." Log entries may indicate insufficient ESP free space, such as "SpaceCheck: Insufficient free space" and "ServicingBootFiles failed. Error = 0x70." Microsoft recommends affected users utilize the Known Issue Rollback feature to reverse problematic updates and advises IT departments to install and configure the relevant Group Policy to address the issue.
Winsage
April 27, 2026
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
January 19, 2026
Microsoft released its first set of security updates for the Windows operating system and various products in January 2026, addressing over 110 vulnerabilities. The updates are available for all supported versions of Windows, with Windows 10 receiving fixes only through the Extended Security Updates (ESU) program. Windows 11 versions 24H2 and 25H2 are the main consumer releases benefiting from these updates. Approximately 112–114 security updates were released, with around 8 rated as Critical. At least one zero-day vulnerability is actively exploited. The updates include security fixes for Windows, Office, Edge, Azure, and server components. Windows 11 versions 23H2, 24H2, and 25H2, as well as Windows Server 2023 and 2025, have known issues. Windows 11 version 24H2 and 25H2 received security fixes for multiple vulnerabilities, while version 23H2 continues to receive support through enterprise servicing channels. Windows 10 updates are limited to ESU-enrolled systems, with general support ending in October 2025. Windows Server 2016, 2019, 2022, 2023, and 2025 received January security updates, addressing important vulnerabilities without disclosing any critical ones. Microsoft also released updates for Office products and SharePoint Server components. Known issues after the January updates include credential prompt failures and authentication issues in Azure Virtual Desktop and Windows 365, particularly affecting the new Windows App. Workarounds involve using the classic Remote Desktop client or the web-based RDP client. Additionally, devices with Secure Launch enabled may experience shutdown and sleep mode failures. Microsoft has provided out-of-band fixes for certain affected systems as of January 18, 2026. Users can manually install updates through the Windows Update feature, and it is recommended to create a full system backup before proceeding with updates.
Winsage
January 3, 2026
Millions of users are unable to transition to Windows 11 due to stringent hardware requirements, leaving many Windows 10 PCs vulnerable to malware threats. Microsoft has introduced Extended Security Updates (ESU) for Windows 10 Home users, available for a year at a cost. Users can enhance their Windows 10 security with various tools: - 0patch: Micropatches vulnerabilities without requiring a restart, supported until 2030. The free version addresses zero-day vulnerabilities, while the pro version offers more comprehensive protection. - TinyWall: Simplifies firewall management using the Windows Filtering Platform, allowing users to control app connections without constant pop-ups. - Patch My PC Home Updater: Automates the updating of outdated applications to enhance security. - Sandboxie Plus: Allows users to run applications in an isolated environment to prevent changes from affecting the system. - Panda Dome Free: A free antivirus solution providing real-time protection against malware, with features like USB Protection and Process Monitor.
Winsage
November 26, 2025
Attackers are using malicious emails with links to adult websites to exploit human curiosity and urgency, leading to the installation of harmful malware through deceptive update processes. Acronis has identified these "JackFix" attacks, which use screen hijacking techniques combined with ClickFix methods, presenting victims with fake Windows Update screens that claim to deliver critical security updates. This campaign leverages counterfeit adult websites as phishing mechanisms, increasing psychological pressure on victims to comply with prompts to install updates. The attack takes over the victim's screen and displays a convincing update interface, occurring entirely within the browser. Acronis advises users to avoid accessing adult sites through links in emails or messages and to navigate directly to these sites for safer browsing.
Winsage
November 25, 2025
Security experts at Huntress have confirmed that hackers are using ClickFix malware to distribute fake Windows security updates, deceiving users into executing harmful commands. Over the past year, these attacks have increased, with both state-sponsored actors and cybercriminal organizations employing this tactic. Microsoft has indicated that ClickFix is the most frequently used method for gaining initial access, representing 47 percent of attacks noted in Microsoft Defender notifications. A report released on November 24 revealed a new wave of ClickFix attacks utilizing realistic Windows Security Update screens to deploy credential-stealing malware. The campaign employs steganography to conceal malware within PNG images, embedding harmful code directly within the pixel data. Windows users are advised to remain vigilant and recognize that legitimate updates will never request users to cut and paste commands into the Windows run prompt from a web page.
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