What is the tool that disables LM/NTLMv1, and where can I get it?

Note: If your computer is joined to Indiana University's ADS domain, you do not need to run this tool. To see if your computer is joined to the ADS domain, right-click the My Computer icon on your desktop and choose Properties. Then choose the Computer Name tab and look for "Domain:". If you see "ads.iu.edu", your computer is joined to the ADS domain. If not, then you may need to run the tool.

Due to security flaws that can allow unauthorized access to restricted resources, UITS has disabled support for the LAN Manager (LM) and NT LAN Manager Version 1 (NTLMv1) authentication protocols. Since certain network resources, such as printing to Residential Technology Center (RTC) printers or mapping network drives, depend on network authentication, you need to run a tool UITS created to configure your Windows 2000 and higher computers to disable insecure LM and NTLMv1 authentication protocols. You can obtain this tool free of charge from IUware:

Download the IUWindowsAuthUpdate executable.

Note: You must run the IUWindowsAuthUpdate tool as an administrator. Either log in temporarily as a local administrator, or run the tool using the Secondary Logon service.

For more information, see LM, NTLM, and NTLMv2 on the IU network.

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