How to get the OneDrive .ADMX files for Group Policies

On a machine with the latest of One Drive for Business installed, navigate to : %localappdata%\Microsoft\OneDrive

Find the latest version number in the folder and open it then go to the adm folder and copy the  .admx file

to \\domain.local\SYSVOL\domain.local\Policies\PolicyDefinitions and .adml file to \\domain.local\SYSVOL\domain.local\Policies\PolicyDefinitions\en-us\

Set Policies

Configure your Group Policies to the settings you want, but the one you’ll need for auto sign in is “Silently configure OneDrive using Windows 10 or domain credentials“. ) This will set : [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\OneDrive] “SilentAccountConfig”=dword:00000001. 

and also it will set Modern Authentication: 

[HKEY_CURRENT_USER\SOFTWARE\Microsoft\OneDrive] “EnableADAL”=dword:00000001