Existem alguns tópicos mas alguém postou uma boa solução aqui
NET START MSSQL$SQLEXPRESS /f /T3608
SQLCMD -S .\SQLEXPRESS
1>SELECT name, physical_name, state_desc FROM sys.master_files ORDER BY database_id;
Now notice those wrong file names; and run following commands ...
Note: you need to change the file name location ..
1>ALTER DATABASE model MODIFY FILE ( NAME = modeldev, FILENAME = 'c:\model.mdf');
2>ALTER DATABASE model MODIFY FILE ( NAME = modellog, FILENAME = 'c:\modellog.ldf');
3> go
ALTER DATABASE msdb MODIFY FILE ( NAME = MSDBData, FILENAME = 'c:\MSDBData.mdf');
ALTER DATABASE msdb MODIFY FILE ( NAME = MSDBLog, FILENAME = 'c:\MSDBLog.ldf');
ALTER DATABASE tempdb MODIFY FILE ( NAME = tempdev, FILENAME = 'c:\temp.mdf');
ALTER DATABASE tempdb MODIFY FILE ( NAME = templog, FILENAME = 'c:\temp.ldf');
go
exit;
NET STOP MSSQL$SQLEXPRESS