system crashes Archives

Winsage

February 27, 2026

Windows Server finally gets ReFS boot support

Microsoft has introduced boot support for the Resilient File System (ReFS) in Windows Server, allowing insiders to boot the server operating system directly from a ReFS volume. This feature has been made available in the latest Windows Server Insider Preview build after a fourteen-year wait since ReFS was launched in 2012. ReFS can detect corruption early and address issues online, eliminating the need for chkdsk, and supports volumes up to 35 petabytes. It also includes block cloning and sparse provisioning technologies for efficient file management. To use ReFS boot, organizations must install the latest Windows Server vNext Insider Preview with a minimum build number of 29531.1000.260206-1841, format the system partition as ReFS, and ensure UEFI firmware is used.

Winsage

February 26, 2026

PoC Published for Microsoft Windows Flaw That Allows Low-Privileged Users to Force Irrecoverable BSODs

Security researchers have developed a working Proof of Concept (PoC) exploit for a vulnerability in the Windows kernel, identified as CVE-2026-2636, which allows low-privileged users to induce a Blue Screen of Death (BSoD), resulting in a Denial of Service. This vulnerability is linked to the Windows Common Log File System (CLFS) driver, specifically the CLFS.sys component, and arises from improper handling of invalid or special elements within CLFS (CWE-159). The PoC demonstrates that a non-administrative user can trigger the bug by executing a crafted ReadFile operation on a handle linked to an opened .blf log file without the expected I/O Request Packet (IRP) flags set. This leads to a critical inconsistency in the driver, causing Windows to invoke the kernel routine KeBugCheckEx, which results in a BSoD. The CVE-2026-2636 has a CVSS score of 5.5 (Medium) and poses a high impact on availability, allowing any authenticated user to crash the host reliably. Microsoft addressed this vulnerability in the September 2025 cumulative update, protecting systems running Windows 11 2024 LTSC and Windows Server 2025 by default. However, older or unpatched builds remain vulnerable. Organizations are advised to verify the deployment of the September 2025 updates, prioritize patching multi-user systems, and monitor for unusual spikes in BSoD events.

Tech Optimizer

February 25, 2026

Fix “kernel security check failure”: Step-by-step guide

The "kernel security check failure" error on Windows indicates corruption in critical system memory or internal data structures, triggering a bug check to prevent further damage. It is marked by the Blue Screen of Death (BSOD) displaying the message “KERNELSECURITYCHECK_FAILURE” and stop code 0x139. Causes include outdated or incompatible drivers, corrupted system files, faulty RAM, disk errors, third-party software conflicts, faulty Windows updates, overclocking, and malware threats. Common fixes involve updating Windows and drivers, scanning for corrupted files, using Check Disk (CHKDSK), running Windows Memory Diagnostic, and performing System Restore. If unresolved, a clean installation of Windows may be necessary. Regular updates and avoiding unnecessary software installations can help prevent future occurrences.

Winsage

February 15, 2026

Microsoft says Windows 11 update causes BSOD on some GPU config, broke WPA3 Wi‑Fi, but a fix is rolling out

Microsoft has acknowledged two issues affecting certain installations of Windows 11: a critical bug causing system crashes for users with specific GPU configurations and a bug impacting WPA3 Wi-Fi connectivity. The first issue leads to a Black Screen of Death (BSOD) with the error code KERNELSECURITYCHECKFAILURE, which has been reported more frequently following recent updates. This error is linked to certain GPU setups encountering a system error involving dxgmms2.sys, a component of DirectX. Microsoft has released the February 2026 Update to address the GPU-related BSOD bug. The second issue prevents some PCs from connecting to WPA3-based Wi-Fi networks, which is related to an optional update released in January 2026 (KB5074105). The February 2026 Update also includes a fix for this connectivity problem, but the rollout is gradual, meaning users may still face issues until fully implemented.

Winsage

January 29, 2026

Windows 11 Reaches 1 Billion Users in 1,576 Days — Faster Than Windows 10

Microsoft reported that Windows 11 has reached one billion users worldwide in 1,576 days, surpassing the 1,706 days it took Windows 10 to achieve the same milestone. CEO Satya Nadella highlighted this as a significant milestone for the Windows brand. Windows 11 was launched on October 5, 2021, and has undergone significant evolution, despite facing challenges such as bugs and system crashes. Microsoft plans to maintain Windows 11 as a long-term version, delaying the introduction of a successor. In the latest quarterly results, Windows reported a 5% year-over-year growth, which was below Microsoft's expectations.

Winsage

January 29, 2026

Windows 11’s Gaming Gains Overshadowed by Stability Crisis: Performance Tests Reveal a Troubled Transition

Microsoft's Windows 11 version 24H2 shows performance improvements in gaming, with frame rate enhancements ranging from 2% to 8% across various titles, particularly benefiting newer DirectX 12 games. However, users report significant stability issues, including Blue Screen of Death (BSOD) errors, crashes during gameplay, and compatibility problems with certain hardware and software. These issues affect a wide range of systems, suggesting systemic challenges rather than isolated incidents. The operating system's hardware compatibility requirements, such as TPM 2.0 support, have also limited upgrade eligibility for many users. Microsoft has acknowledged specific issues related to Intel and AMD processors, antivirus software conflicts, and outdated drivers. Despite ongoing patch deployments, user frustration persists due to the slow pace of fixes. The stability concerns have led some businesses to delay Windows 11 24H2 deployments, prioritizing reliability over performance gains. The driver ecosystem's lag in updates from hardware manufacturers has further complicated stability. The gaming community remains divided, with many users opting to stay on Windows 10 due to these stability risks.

Winsage

January 21, 2026

Windows 11 update is breaking sleep mode on some PCs — but there’s one trick that might help

Windows 11's January update, KB5074109, has caused a bug affecting sleep mode on certain older PCs, leading to system crashes that require hard reboots. Users have reported that the issue appears only when the update is installed and resolves upon its removal. This problem primarily affects older machines using the S3 sleep state, while newer devices with modern standby features are less impacted. A suggested workaround involves unplugging USB webcams. Additional issues reported include freezing with the Outlook app for POP accounts, shutdown failures for enterprise users, and problems with keyboard and mouse functionality. Microsoft has acknowledged some of these issues and has deployed emergency fixes for certain problems.

Winsage

January 20, 2026

I tried 0patch as a last resort for my Windows 10 PC – here’s how it compares to its promises

In early 2023, Microsoft announced that official support for Windows 10 will end on October 14, 2025, with Extended Security Updates (ESU) concluding in October 2026. 0patch offers a service providing micropatches for Windows 10, addressing specific vulnerabilities with an average of two to three micropatches released monthly. 0patch operates by quickly responding to newly discovered vulnerabilities, focusing on those that are publicly known, actively exploited, and not officially fixed by Microsoft. It has a free tier for critical vulnerabilities and a paid Pro plan that includes additional updates post-End of Service. Users have reported some performance issues, but the updates generally do not significantly impact system performance. 0patch plans to support Windows 10 until at least October 2030, with potential extensions based on demand. The Pro plan costs approximately per year, with a 30-day trial available, and an Enterprise plan for organizations is offered at around annually.

AppWizard

January 15, 2026

Android 16 QPR3 Beta 2 makes Settings easier to navigate and squashes plenty of bugs

Google has released the Android 16 QPR3 Beta 2, focusing on stability improvements and bug fixes for Pixel phone users. The update addresses critical crashes, notification shade glitches, charging limit issues, and slow Wi-Fi connectivity. It also features a revamped System Settings layout with grouped sections for easier navigation. The beta is available as an OTA update for enrolled users and is compatible with Pixel devices from the Pixel 6 series to the Pixel 10 lineup. Users can also manually flash factory images if preferred. The stable release of Android 16 QPR3 is expected around March 2026.

Winsage

January 1, 2026

Windows Reborn: Microsoft Moves Copilot into the Kernel, Launching the Era of the AI-Native OS

Microsoft is transitioning its Windows operating system to an "AI-native" platform, embedding AI capabilities directly into the Windows kernel, marking a significant architectural shift not seen in three decades. This new approach, called the "Agentic OS," allows AI to manage files, system settings, and workflows proactively. The updated kernel, partially rewritten in Rust, includes a new NPU-aware scheduler that treats the Neural Processing Unit as a primary resource. Microsoft has introduced "Agent Workspace" and "Agent Accounts" for autonomous agents, ensuring actions are logged and audited for compliance. Communication between agents and the system is facilitated by the Model Context Protocol (MCP). Hardware requirements for the new OS have increased, with benchmarks set for NPUs achieving 80 to 100 TOPS. Major PC manufacturers are adjusting their portfolios to accommodate "Agentic PCs." The competitive landscape is evolving, with companies like Alphabet and Apple developing their own AI-native platforms. The introduction of the AI-native kernel raises privacy and security concerns, with Microsoft implementing measures to restrict third-party access to the kernel. Future updates may include "self-healing" capabilities and "Cross-Device Agency," leading to a more integrated personal AI experience.