cumulative updates

Winsage
May 3, 2026
Experts advise against postponing Windows updates, as Microsoft has introduced features allowing users to control when updates occur. Users can pause updates for up to 35 days indefinitely, but delaying updates can lead to security vulnerabilities. Microsoft releases several types of updates: security updates, feature updates, quality updates, driver updates, optional updates, out-of-band updates, and zero-day updates. Zero-day updates are critical and should be installed immediately to avoid exploitation. Recent reports indicate that critical OS patching for Windows 10 and 11 is lagging by an average of 256 days, increasing the risk of cyber incidents.
Winsage
May 1, 2026
Microsoft resolved an issue affecting the display of security warnings when opening Remote Desktop (.rdp) files across all supported Windows versions, including Windows 11, Windows 10, and Windows Server. This problem was particularly evident on devices with multiple monitors having different display scaling settings. The fix was included in the optional KB5083631 preview cumulative update for Windows 11. The issue arose after the installation of the April 2026 security update, which introduced security warnings to enhance protection against phishing attacks. Users reported misalignment and obscured buttons in the security dialog, making it difficult to interact with. Additionally, the April security updates caused issues with third-party backup applications on Windows 11 systems and led to restart loops and failures during update installations on Windows Server.
Winsage
May 1, 2026
Microsoft has updated its Windows 11 operating system to enhance the management of preinstalled applications. The new RemoveDefaultMicrosoftStorePackages policy allows IT administrators to remove any preinstalled MSIX/APPX applications by referencing their Package Family Name (PFN) through Group Policy Object (GPO) or custom OMA-URI for mobile device management (MDM). This feature requires devices to have at least the April 2026 Windows non-security update. It is available for Windows 11 version 24H2 Enterprise and Education editions, whereas it was initially exclusive to version 25H2 or later. A comprehensive list of supported applications and instructions for applying the policy are provided in Microsoft's documentation. Additionally, a new policy setting enables the uninstallation of the AI-powered Copilot digital assistant from enterprise devices after the April 2026 Patch Tuesday updates. The dynamic list option for this policy will be rolled out in the coming months.
Winsage
April 29, 2026
Monthly updates for Windows 11 from Microsoft now range from 4 to 9 GB, compared to 300 to 500 MB updates two years ago. The increase in update sizes is attributed to the integration of advanced AI features, cumulative delivery of updates, and a fixed monthly update schedule. Cumulative updates bundle all previous updates, leading to larger file sizes, while the monthly frequency forces consolidation of changes into single releases. Users can check what their PC is downloading during an update by navigating to Settings > Windows Update > Advanced options > Delivery optimization > Activity monitor.
Winsage
April 28, 2026
Windows 11 updates have significantly increased in size, with monthly cumulative updates often exceeding 4GB and some approaching 5GB. One update can expand to nearly 9GB when extracted. Microsoft has shifted to delivering Latest Cumulative Updates (LCUs), which include all previous fixes, leading to larger update sizes over time. The introduction of Checkpoint Cumulative Updates aims to reduce this growth by establishing periodic baselines, but the effectiveness has been mixed. The May 2025 cumulative update saw a size increase from approximately 6.5GB to nearly 9GB, with new MSIX files related to semantic search and on-device AI contributing to this growth. Windows Update uses applicability logic to minimize download sizes for users, but enterprises must download full packages, resulting in increased storage costs. The average yearly storage cost for enterprises rose from about 11 GB in 2024 to 52 GB by 2026. Users can check their actual download sizes through the Windows Update settings and Event Viewer logs.
Winsage
April 28, 2026
Microsoft has identified an issue affecting the display of security warnings when users open Remote Desktop (.rdp) files across all supported versions of Windows, including Windows 11, Windows 10, and Windows Server. The security warning may not render correctly, making the text difficult to read and buttons misaligned, especially when multiple monitors with different display scaling settings are used. This issue often results in overlapping text or obscured buttons in the warning window. The problem is part of Microsoft's security enhancements introduced with the April 2026 cumulative updates, which aim to mitigate risks associated with malicious RDP connection files. Users receive a one-time educational prompt upon opening an RDP file for the first time, followed by a security dialog that provides information about the file's publisher and resource redirections. RDP files are commonly used in enterprise environments, but their exploitation in phishing campaigns has raised security concerns, particularly by groups like the Russian state-sponsored APT29.
Winsage
April 20, 2026
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).
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