No matter if data has been deleted using a ‘Delete’ button, Shift –Del button, emptying the recycle bin or formatting the hard drive the data can still be recovered using any Data Recovery Software. Windows Operating System does not physically remove deleted files from your hard disk but the data remains there until the information is overwritten by a new file. Deleted file, which is not overwritten, can still be recovered.
In order to delete files permanently, you have to use file shredder software which helps you to shred files and folders from your Windows drive. It shreds the deleted data leaving no traces of sensitive/critical data.