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

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 computer to disable insecure LM and NTLMv1 authentication protocols. You can obtain this tool free of charge from IUware.

• Download the IU NTLMv2 Windows Authentication Update.
• 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.

Windows 10

1. Search System in the Start menu.
2. Select System.
3. On the next screen, under "Computer name, domain, and workgroup settings", look for "Domain:". If you see "ads.iu.edu", your computer is joined to the ADS domain. If not, you may need to run the tool.

   If you see "Workgroup" instead of "Domain:", you may also need to run the tool.

Windows 8.x

1. Open Desktop mode.
2. Press Win-c, and then click Settings.
3. Click PC Info, and the system will display whether or not it is in the ADS domain.

Windows 7

1. Right-click Computer, located on your desktop or in your Start menu, and select Properties.
2. On the next screen, under "Computer name, domain, and workgroup settings", look for "Domain:". If you see "ads.iu.edu", your computer is joined to the ADS domain. If not, you may need to run the tool.

   If you see "Workgroup" instead of "Domain:", you may also need to run the tool.