Windows Server

Windows 11 Authentication Failures Linked to Security Update Conflict

Microsoft has identified the root cause of widespread Windows 11 authentication problems affecting users since late August. The company’s security enhancements are reportedly conflicting with systems containing duplicate security identifiers, causing login and network access failures across multiple Windows versions.

Widespread Authentication Issues Emerge

Microsoft has confirmed significant login and authentication problems affecting Windows 11 and Windows Server 2025 systems, according to reports from the company’s support documentation. Sources indicate the issues began affecting users around August 29th, with problems persisting across both Windows 11 24H2 and the newer Windows 11 25H2 versions.

by Alvarez JordanOctober 23, 2025

Cybersecurity Security Software

Critical Windows Vulnerability Actively Exploited: Immediate Update Required

Urgent Security Alert for Windows Users Microsoft Windows administrators and users face an immediate security threat as cybersecurity authorities confirm…

by Desai PriyankaOctober 21, 2025

Cybersecurity Software Guides

Windows Server 2025 Directory Sync Failure Confirmed Following Problematic Security Update

Microsoft has confirmed a new synchronization issue impacting Windows Server 2025 installations following the September 2025 security update. The bug affects Active Directory directory synchronization processes for large security groups exceeding 10,000 members. Administrators can apply a registry workaround while Microsoft develops a permanent fix.

Windows Server 2025 Directory Sync Failure Confirmed

Microsoft has confirmed a new synchronization issue has been actively impacting Windows Server 2025, following the September 2025 security update (KB5065426). According to reports, the bug affects Active Directory directory synchronization processes, particularly when dealing with large AD security groups exceeding 10,000 members.

by Desai PriyankaOctober 15, 2025