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Microsoft confirms Windows 11 login issues. Here’s what’s causing it

Since August 29th, many users have reported various login problems on Windows 11 and Windows Server 2025, and that includes both Windows 11 24H2 and the newer Windows 11 25H2. According to Microsoft’s ...
Bleeping Computer

Microsoft: Recent Windows updates cause login issues on some PCs

Microsoft has confirmed that Windows updates released since August 29, 2025, are breaking authentication on systems sharing Security Identifiers. Windows uses unique alphanumeric strings known as ...
Bleeping Computer

Windows Server August updates fix Microsoft 365 Defender issue

Microsoft has resolved an issue that breaks multiple Microsoft 365 Defender features using the network data reporting service after installing July's Windows Server updates. The Microsoft 365 Defender ...
Forbes

Act Now — Microsoft Issues Emergency Windows Update As Attacks Begin

Windows Server is under attack, act now. Updated October 26 with more technical information regarding the latest Microsoft Windows emergency security update addressing CVE-2025-59287, a critical ...