Can´t restore backup to iPhone4

I have updated my iPhone4 to the newest iOs7.0.4. Before that i backed up in the iTunes control panel. When I tried to restore the backup, i got the message "iTunes could not restore the iPhone because of an error occured".

I have the backupfile on my hd, and i have tried several times to restore, but always got the errormessage. I have also restored the iOs, not helping either.

Is there a solution? Thanks for helping!