Disable authPersistNonNTLM in IIS 10.0

Procedure-related prerequisites

  • You need to be logged in as an administrator.
  • Configuration takes place in IIS web server.


  • 1.
    Go to: Administrative Tools >> Internet Information Services (IIS) Manager
  • 2.
    In the Connections span, expand the Sites node tree.
  • 3.
    In the Connections span, select the Default Web Site.
  • The instructions describe the required steps for the Default Web Site.

  • 4.
    Double-click on the Configuration Editor feature.
  • 5.
    Select in the drop down menu Section system.webServer/security/authentication/windowsAuthentication
  • 6.
    Change authPersistNonNTLM to False.
  • 7.
    In the Action span, click on Apply