I am getting following error.
Restore failed for Server
I have recently upgraded SQL Server 2005 Express to SQL Server 2008 Express.
You have 2 options here.
Use WITH REPLACE while using the RESTORE command. This will overwrite the existing database and restore the database state represented by the backup files.
Delete the database to which you are trying to restore to and restore again using RESTORE command. This will create a new database with the state represented by the backup files.
Please note that in both these options you will lose the existing data of the database you are trying to restore to.