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#Windows 11

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INFO
Threat Intel

Microsoft Removes WMIC Tool in Windows 11 to Curb Living-off-the-Land Tactics

Microsoft removes the legacy WMIC tool from Windows 11 builds to disrupt living-off-the-land techniques used by ransomware and malware.

Runtime Rebel Intel
2 min read · Aug 18, 2026
LOW
Threat Intel

Bypassing Windows Administrator Protection: Security Research

Analysis of Windows 11 25H2 Administrator Protection, detailing security research into UAC flaws and local privilege escalation vectors.

Runtime Rebel Intel
2 min read · Aug 8, 2026
INFO
Threat Intel

Windows 11 KB5101684 Preview Update Addresses 42 System Issues

Microsoft releases KB5101684 preview cumulative update for Windows 11 24H2 and 25H2, fixing 42 bugs across Start menu, Task Manager, and Sandbox environments.

Runtime Rebel Intel
3 min read · Jul 29, 2026
MEDIUM
Vulnerabilities

KB5121767: Microsoft Fixes Windows 11 Dell PC Shutdown Bug

Microsoft issues emergency out-of-band update KB5121767 to resolve critical system shutdown issues affecting Dell PCs running the July 2026 Windows 11 update.

Runtime Rebel Intel
4 min read · Jul 20, 2026
MEDIUM
Threat Intel

Windows 11 Compatibility Hold for Dell Devices: Mitigation Guide

Microsoft blocks October 2024 Windows 11 updates for specific Dell hardware due to kernel-level conflicts causing spontaneous shutdowns and performance loss.

Runtime Rebel Intel
3 min read · Jul 15, 2026
INFO
Cloud Security

Microsoft Introduces Windows 11 Cloud Rebuild Recovery Feature

Microsoft is testing the new Cloud Rebuild recovery feature for Windows 11 Insider Preview, offering a streamlined, cloud-based OS reinstallation option.

Runtime Rebel Intel
5 min read · Jul 7, 2026

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INFO
Supply Chain

Windows 11 Emoji Panel GIF Fix Highlights Supply Chain Dependency

Microsoft resolves Windows 11 Emoji Panel GIF functionality after provider shutdown, underscoring third-party service dependencies in OS features.

Runtime Rebel Intel
4 min read · Jul 1, 2026
INFO
Threat Intel

Windows 11 KB5095093: New Point-in-Time Restore and Bug Fixes

Microsoft releases KB5095093 for Windows 11 24H2, introducing a critical Point-in-Time restore feature and addressing multiple system-level bugs.

Runtime Rebel Intel
3 min read · Jun 23, 2026
INFO
Vulnerabilities

Windows 11 KB5089573: Performance and Reliability Fixes for 24H2/25H2

Microsoft releases KB5089573 preview for Windows 11 24H2 and 25H2, addressing Task Manager bugs, ReFS performance issues, and Sandbox stability errors.

Runtime Rebel Intel
3 min read · May 27, 2026
INFO
Threat Intel

Microsoft's 2026 Plan: Enhancing Windows 11 Driver Quality and Security

Microsoft outlines plans for 2026 to significantly enhance Windows 11 driver quality, aiming to bolster system stability and security from the core up.

Runtime Rebel Intel
4 min read · May 19, 2026
HIGH
Vulnerabilities

YellowKey: Bypassing Windows 11 BitLocker TPM Protections

Technical analysis of YellowKey, a zero-day exploit bypassing Windows 11 BitLocker. Learn how physical access allows attackers to extract encryption keys.

Runtime Rebel Intel
4 min read · May 18, 2026
INFO
Threat Intel

Windows 11 Resizable Taskbar and Start Menu Preview Analysis

Microsoft initiates testing for resizable taskbar and Start menu features in Windows 11 Insider builds, addressing long-standing UI customization requests.

Runtime Rebel Intel
3 min read · May 18, 2026
MEDIUM
Vulnerabilities

Windows 11 KB5089549 Security Update Installation Failure Analysis

Microsoft confirms Windows 11 KB5089549 security update fails with error 0x800f0922. Learn how to troubleshoot and resolve these installation issues.

Runtime Rebel Intel
4 min read · May 18, 2026
HIGH
Vulnerabilities

Pwn2Own Berlin 2026: Critical RCE and Escalation Targets Identified

Security researchers demonstrate critical zero-day exploits against Windows, VMware, and AI systems at Pwn2Own Berlin 2026, earning over $1.3 million.

Runtime Rebel Intel
3 min read · May 18, 2026
HIGH
Vulnerabilities

Pwn2Own Berlin: Microsoft Exchange, Windows 11 Zero-Day Exploits

Zero-day vulnerabilities in Microsoft Exchange, Windows 11, and Red Hat Enterprise Linux demonstrated at Pwn2Own Berlin. Runtime Rebel details the impact.

Runtime Rebel Intel
4 min read · May 15, 2026
HIGH
Malware

Malicious Windows 11 ISOs Deliver Vidar Infostealer — Analysis

Security researchers warn of fake Windows 11 ISO installers delivering Vidar and RedLine infostealers through sophisticated DLL side-loading techniques.

Runtime Rebel Intel
4 min read · May 12, 2026
INFO
Threat Intel

Windows 11 Modern Run Dialog: Technical Overview and Security Analysis

Microsoft updates the Windows 11 Run dialog in Insider Preview Build 27793 with WinUI 3 components, Dark Mode, and improved performance for OS interactions.

Runtime Rebel Intel
3 min read · May 2, 2026
LOW
Vulnerabilities

Windows 11 24H2 Remote Desktop Security Warning Bug Patched

Microsoft resolves a Windows 11 24H2 bug where Remote Desktop (.rdp) security warnings failed to display correctly after the October 2024 updates.

Runtime Rebel Intel
3 min read · May 1, 2026
LOW
Vulnerabilities

KB5083631 Update: Windows 11 Batch File and Startup Performance

Microsoft releases KB5083631 for Windows 11, introducing batch file security enhancements, Xbox Game Bar updates, and optimizations for startup applications.

Runtime Rebel Intel
3 min read · May 1, 2026
INFO
Identity & Access

Managed Windows 11 Bloatware Removal: New IT Admin Policy Controls

Microsoft updates Windows 11 policy allowing IT admins to selectively uninstall pre-installed Store apps, reducing the attack surface in managed environments.

Runtime Rebel Intel
4 min read · May 1, 2026
MEDIUM
Vulnerabilities

Microsoft RDP Security Warning Display Bug — Mitigation Guide

Microsoft confirms security warnings for Remote Desktop (.rdp) files may display incorrectly on Windows 10 and 11, potentially obscuring risk information.

Runtime Rebel Intel
4 min read · Apr 28, 2026
INFO
Threat Intel

Microsoft Revamps Windows Insider Program for Windows 11 Testing

Microsoft's Windows Insider Program overhaul introduces new Canary and Dev channels, changing how security teams test Windows 11 reliability and performance.

Runtime Rebel Intel
3 min read · Apr 25, 2026
INFO
Cloud Security

Microsoft Enterprise Copilot: New Uninstall Policy for Admins

Microsoft introduces a new policy setting allowing IT administrators to uninstall Copilot from enterprise devices, enhancing management and control over AI features.

Runtime Rebel Intel
4 min read · Apr 24, 2026
INFO
Threat Intel

Microsoft Teams Efficiency Mode: Optimizing Resource Usage for PCs

Microsoft introduces Efficiency Mode for Teams to reduce CPU and memory consumption on resource-constrained devices, improving overall system responsiveness.

Runtime Rebel Intel
4 min read · Apr 22, 2026