If you need to remove the new suggested applications option from the Windows 10 Start Menu, and you need to push this change to a large install base of managed systems you have a few options.

You can create a GPO to disables the feature if you are managing a domain, or you can modify the registry if you are using a Remote Management Suite to manage several domains and/or workgroups.

Here is the registry value to disable the suggested applications.
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CloudContent]
"DisableWindowsConsumerFeatures"=dword:00000001

This command can be run from an admin command prompt to set the registry setting.
REG ADD HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CloudContent /v DisableWindowsConsumerFeatures /t REG_DWORD /d 1 /f