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Windows app forgets how to log in with first security update of the year

January patch trips up Azure Virtual Desktop and Windows 365 authentication Microsoft has kicked off 2026 with another faulty ...
Neowin

Microsoft wants to eventually disable NTLM authentication in Windows 11Microsoft wants to eventually disable NTLM authentication in Windows 11Microsoft wants to eventually ...

The various versions of Windows have used Kerberos as its main authentication protocol for over 20 years. However, in certain circumstances, the OS has to use another method, NTLM (NT LAN Manager).
Windows Report

Windows 11 and Server 2025 Updates Get Bigger With New CLFS Security Changes

Microsoft adds HMAC protection to CLFS in Windows 11 25H2 and Server 2025, improving security while increasing disk and I/O ...
Bleeping Computer

Microsoft: April updates cause Windows Server auth issues

Microsoft says the April 2025 security updates are causing authentication issues on some Windows Server 2025 domain controllers. The list of impacted platforms includes Windows Server 2016, Windows ...