Thank you Al.

>>In my windows server 2016 I launch powershell and I write
>>
>>get-smbclientconfiguration
>>
>>I'm doing this because I want to see the values for
>>
>>DirectoryCacheLifetime
>>FileInfoCacheLifetime
>>FileNotFoundCacheLifetime
>>
>>I see the values which are not 0
>>
>>I don't understand that I see their values here but there are no entries associated with those keys when I do a regedit and the I look to find those keys in
>>
>>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanWorkstation\Parameters
>>
>>Why?
>
>If there are no registry entries, Windows uses internal default values. To override those defaults you have to manually create the registry entries and set their values.