• If you copied the file while the SQL Server was running this file probably will not attach either and you will need to get a valid backup of the database. Download help tool for sql database - SQL Server Restore Toolbox. http://www.sqlserver.restoretools.com/[/url] You can read up more on SQL Server here. http://www.filerepairforum.com/forum/microsoft/microsoft-aa/sql-server/498-creating-a-new-database-using-an-mdf-file?_=1416149856104