Usually freeware like icare data recovery free, easeus data recovery free, testdisk, power data recovery free edition, diskdrill etc. can do the job. However if your data is restored as corrupted, your lost data may have been damaged due to many possible reasons.
You may try other programs to see whether they can restored right. Or turn it to local disk repair center for data recovery but usually expensive.
Using Deleted File Recovery Software you will able to search for missing files only.
Existing files are discarded, narrowing recovery to exactly the files you are really missing.
With Deleted File Recovery Software http://www.recoversdata.com/ you also have better chances for a sucessfull recovery of files that were stored fragmented.
On large disks, recovering time and the number of files to examine will be reduced dramatically.