kenneth.gore (8/18/2013)
So why would the SQL process have handles to these files if it is not using them? Even after two reboots.
Can't think of any logical reason if they're not registered with the instance.
Are you sure they're not part of a different DB than you're expecting? Do they appear anywhere in this output:
SELECT physical_name, DB_NAME(database_id) Database_Name FROM sys.master_files