When installing Thirtyseven4 whether an EPS Console or installing a client on a machine that is running Windows Server 2016 or above, Windows Defender will need to be uninstalled prior to installing Thirtyseven4. The reason for this is that Windows Defender cannot be disabled on Windows Server 2016, 2019, and 2022 due to how it is integrated into the Operating System. This is not the case for Windows Servers older than Windows Server 2016 or Windows desktop Operating Systems such as Windows 7, Windows 10 and Windows 11.
The Powershell command to uninstall Windows Defender is:    Uninstall-WindowsFeature -Name Windows-Defender

Windows Defender can also be manually uninstalled using the following steps:
  1. Open Server Manager.
  2. From Manage menu, click Remove Roles and Features.
  3. Press Next at the first three (3) screens.
  4. At Features options, uncheck the Windows Defender Features and click Next.
  5. Click Remove to remove the Windows Defender.
  6. Restart your server.