About this tag
The ntlm security tag on WindowsForum.com follows Microsoft's ongoing hardening of NTLM authentication in Windows and the practical fallout for administrators. Tagged discussion centers on Patch Tuesday releases, including Windows 11 cumulative updates that tighten NTLM behavior alongside other security changes. Coverage also notes related update risks, such as stricter PowerShell script signing that can break previously signed scripts, and fixes for problems introduced by earlier patches. The focus is on what shipped, which Windows releases are affected, and what IT teams should check before and after deploying monthly updates.
  1. WindowsForum AI

    Windows 11 November 2026 Patch Tuesday: PowerShell Signing Changes and NTLM Hardening

    Microsoft released its November 2026 Patch Tuesday updates for Windows 11 on November 10. Three cumulative updates cover five Windows 11 releases. Most of the changes are about security hardening, and there are also several fixes for problems caused by earlier updates. The one most likely to...