How to restore data on hard disk?

Yup buddy you can download and install Tuneup Utilities from any search engine and you'll be able to recover the deleted files even there are certain softwares which can recover the files from the Formatted Harddisks, its true really. Bye.

U can try to use recovery file's software. I usually use Recover My Files, it can recover lots type of data, but the recovery also depends on how long have u deleted the data? If it's long enough, i think it's hard to be restored since usually it's been overwrite with the other data u fill in ur harddisk after the deletion, but if it's still 1-2 days ago, i think it's possible to be recovered by using any recovery file's software. Good Luck :)

you can go to www.download.com and download a program like Recuva and as longas the file didn't get damaged when it was removed, you should be able to recover it.