If you accidentally format your computer hard disk, and lost files after hard drive reformat, do not worry, because it is possible to recover deleted files from formatted hard drive.
First of all, you should stop using the hard drive. This is to prevent new files to be written on the hard disk. Because after hard disk quick reformat, the data of all the files are still on the hard disk, just that the whole hard disk is marked as empty. Hence any new files could overwrite the space of lost files, which may make them not recoverable.
To recover deleted files from formatted hard disk, you will also need professional data recovery software. You can follow this step by step guide:
how to recover data from formatted hard disk
The hard drive format recovery software is easy to use. You can recover deleted photos, videos, songs, documents, and other files from Windows computer hard disk after reformat. You can recover formatted hard disk on Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP.
How to recover deleted files from hard disk
Recycle bin data recovery
Restore mp4 files from GoPro Hero