I'm trying to find ULS logs file, so I went and configured the diagnostic logging in the
central administration > Monitoring.
I've selected all the categories,
Set minimum level of trace
Event log at verbose
Set the file directory to : C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\LOGS.
But when I go into this file I can't see any log.What is the reason behind it and how I can I see my logs ?