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August's Windows 11 update breaks printers and PDFs. Microsoft explains why
Winsage
August 25, 2026

August’s Windows 11 update breaks printers and PDFs. Microsoft explains why

Microsoft has acknowledged that users may encounter printing issues after installing the August 2026 .NET Framework cumulative update, particularly with applications that use certain fonts like Calibri. Some WPF applications may fail with a System.IO.FileFormatException when printing or generating PDF/XPS content. Microsoft has provided a temporary workaround while investigating these issues. Additionally, the KB5121003 update has been linked to problems affecting the gaming community, which Microsoft is also addressing.
Microsoft: August updates break printing, PDF export in WPF apps
Winsage
August 25, 2026

Microsoft: August updates break printing, PDF export in WPF apps

Microsoft has acknowledged a significant issue with the .NET Framework updates from August 2026, causing disruptions in printing and PDF export functionalities in certain applications, particularly those using the Windows Presentation Foundation (WPF) UI framework. After installing the update, some WPF applications may encounter a System.IO.FileFormatException when printing or generating PDF/XPS content with specific fonts, including Calibri. This issue affects various platforms, including Windows 10, Windows 11, and Windows Server editions from 2012 to 2025. Microsoft has provided a temporary workaround involving the Switch.MS.Internal.TtfDelta.DisableCmapAndSbitOverflowProtection AppContext switch, but cautions that it may expose systems to vulnerabilities. This situation is reminiscent of a similar incident in February 2021, where WPF applications and Visual Studio experienced crashes after Windows 10 cumulative updates. Additionally, on the same day, Microsoft offered a workaround for another issue caused by Windows 11 updates that led to crashes in certain games.
Windows 11 Update Breaks Games: The RGB Fix
Winsage
August 24, 2026

Windows 11 Update Breaks Games: The RGB Fix

The cumulative update for Windows 11, KB5121003, has caused game freezes and crashes for users, attributed to conflicts with third-party software and drivers managing RGB components, particularly related to the inpoutx64.sys file. Affected games include ARC Raiders, MARVEL Tōkon: Fighting Souls, and THE FINALS, with symptoms such as unresponsive games, sudden closures with an EXCEPTIONACCESSVIOLATION message, and unexpected system reboots. Microsoft has not provided a permanent fix but suggests users report issues via the Windows 11 Feedback Hub and consider removing or renaming the problematic driver as a temporary measure.
Microsoft shares detailed guide for IT admins on saving massive internet data on Windows 11
Winsage
August 20, 2026

Microsoft shares detailed guide for IT admins on saving massive internet data on Windows 11

Microsoft has released a guide for IT administrators focused on optimizing Windows deployments and reducing bandwidth usage through Windows Delivery Optimization configured via Microsoft Intune. Delivery Optimization uses a peer-to-peer sharing system, allowing devices to download content from each other instead of solely from Microsoft servers, which helps reduce internet strain for organizations with many Windows PCs. Administrators can create specific peer groups based on network topology and control bandwidth usage for downloads, with options to set different limits for business and off-hours. Microsoft also introduced Connected Cache, which stores frequently accessed content locally to further minimize bandwidth consumption. A statistic shared by Microsoft indicates that using Delivery Optimization can significantly reduce internet traffic, as a 1 GB update for 10,000 devices could otherwise generate 10 TB of internet traffic. The guide recommends starting with a small seeder ring of devices to populate peer caches before wider deployment. Microsoft provides specific policy settings for Delivery Optimization, including default and recommended values for settings such as download mode, peer selection, cache size, minimum file size for caching, cache age, and monthly upload data cap. Proper configuration of Delivery Optimization is suggested to benefit organizations managing large numbers of devices.
Microsoft just rebuilt one of Windows 11's oldest tools in modern UI, rollout starts in the next few days
Winsage
August 17, 2026

Microsoft just rebuilt one of Windows 11’s oldest tools in modern UI, rollout starts in the next few days

Microsoft has transitioned its newly designed Print Management tool into the Release Preview channel for Windows 11, moving it closer to general availability after initial appearances in Beta and Experimental builds. The new Print Management app, built on WinUI 3, replaces the outdated MMC-style console and features a modern layout with a user-friendly interface. It serves as a comprehensive management system for administrators, allowing oversight of printers, print queues, drivers, ports, and print servers. The rollout schedule includes an optional update anticipated for late August and integration into the regular September cumulative update. However, the timeline may be subject to delays. The updated application maintains essential administrative functionality while simplifying tasks such as renaming printers and customizing displayed information. Some legacy elements remain, requiring administrative privileges to launch the app. Microsoft is actively modernizing Windows 11's user interface, including the Print Management tool, as part of a broader initiative to replace outdated components.
Windows 11 KB5121003 is triggering game crashes and other issues on some PCs
AppWizard
August 16, 2026

Windows 11 KB5121003 is triggering game crashes and other issues on some PCs

Windows 11 update KB5121003, released in August 2026, addresses over 400 vulnerabilities but has caused crashes in games like ARC Raiders and The Finals. The game studio Embark has confirmed that the crashes are linked to the inpoutx64.sys driver, which has compatibility issues due to the update. Users have reported errors such as “Hang detected on GameThread” and “EXCEPTIONACCESSVIOLATION” after installing the update. Embark has provided a workaround to stop and delete the inpoutx64.sys service to resolve the crashes. Uninstalling the update also appears to fix the issue. Additional reports indicate crashes in other games and graphics-related problems following the update.
'This one just needs a script': Researchers find ultimate Windows kill switch which can disable antivirus w...
Winsage
August 14, 2026

‘This one just needs a script’: Researchers find ultimate Windows kill switch which can disable antivirus w…

Researchers from the University of Birmingham and Durham University discovered a vulnerability in consumer DDR4 and DDR5 memory chips, termed "Download more RAM," which allows attackers to misreport memory configuration, potentially doubling the perceived RAM. This manipulation enables unauthorized access to memory allocations, bypassing Windows' Virtualization-based Security (VBS) and Hypervisor-Enforced Code Integrity (HVCI), and disabling antivirus software. The vulnerability affects major manufacturers like Corsair, G.Skill, and ADATA, which collectively hold over 55% of the high-performance memory market. Microsoft has patched the vulnerability, cataloged as CVE-2026-23670, with a medium severity score of 5.7/10, in the April 2026 Patch Tuesday update. Corsair has introduced a feature to enable write protection on their memory modules, and other tools are available for additional protection.
Microsoft fixes the Windows 11 bug slowing down some Dell PCs
Winsage
July 21, 2026

Microsoft fixes the Windows 11 bug slowing down some Dell PCs

Microsoft released an unscheduled update for Windows 11, designated as KB5121767, targeting users on versions 24H2 and 25H2 to address performance issues on certain Dell PCs and laptops with Intel Innovation Platform Framework drivers. The update aims to fix degraded battery life, increased power consumption, and unexpected system behavior caused by conflicts with these drivers. Affected devices primarily include newer Dell models such as the Precision, XPS, and Pro Max series. Users can obtain the update automatically if they have enabled the relevant option in Windows Update or manually through Settings or the Microsoft Update Catalog. The update modifies the Windows build number to 26200.8894 for 25H2 and 26100.8894 for 24H2 and includes previous security and quality enhancements. Microsoft recommends the update for users experiencing sluggish performance or erratic behavior after July updates, particularly those with recent Dell devices with Intel processors.
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