#Windows 11
All CosmicBytez Labs articles tagged #Windows 11, across news, security advisories, how-to guides, and projects.
- News
Microsoft: October Windows Update May Break Smart App Control
KB5127648 can grey out Smart App Control on Windows 11 24H2+, blocking users from turning it on. No fix yet — only workarounds.
- News
Microsoft Confirms Recent Windows Updates Cause Desktop Loading Failures
August and September 2026 Windows updates can leave users stuck on a black screen after sign-in, mainly hitting Azure Virtual Desktop hosts.
- News
Microsoft to Retire Microsoft 365 Companion Apps in December
Calendar, People, and Files taskbar apps stop working December 16, 2026; admins must remove them from managed devices.
- News
Microsoft Asks Users to Ignore False 'Antivirus Is Turned Off' Errors
Microsoft confirms a Defender bug shows false "antivirus is off" alerts on Windows 11 26H1 and Server 2025 — protection is unaffected, fix pending.
- News
Microsoft June 2026 Updates Break Recycle Bin Confirmation Prompts on All Windows Versions
A bug introduced by June 2026 security updates causes Windows to display internal $R filenames instead of original filenames in the Recycle Bin deletion...
- News
Microsoft Tests Modern Windows Run Dialog With Dark Mode
Microsoft is testing a redesigned Run dialog for Windows 11 that brings dark mode support and improved performance over the legacy Win+R dialog that has...
- News
Microsoft Rolls Out Revamped Windows Insider Program
Microsoft is rolling out a revamped Windows Insider Program experience as part of broader plans to address performance and reliability concerns affecting...
- News
Microsoft Now Force-Upgrades Unmanaged Windows 11 24H2 PCs
Microsoft has begun automatically upgrading unmanaged Windows 11 Home and Pro devices from 24H2 to 25H2, removing user choice from the update process for...
- News
Windows 11 February Update Breaks C:\ Drive Access on Samsung PCs
Microsoft is investigating a new bug affecting Samsung laptops after the February 2026 security update — some users are unable to access their C: drive...
- Checklist
Endpoint Security Baseline: Windows 11 + Intune
Comprehensive endpoint security baseline template for Windows 11 devices managed by Microsoft Intune. Covers OS hardening, compliance policies, BitLocker,...