Format, delete files
Depending on the file system, the internal processing of deleting data such as files or folders is different. In NTFS, the file management record is marked as “deleted” and the cluster is marked as “disabled”. Any new input data coming after that may be directed to and stored in the area marked “disabled”. By this process, the deleted data area will be overwritten with new data and may be permanently damaged. So it is the best to stop all operations immediately when you delete data by mistake, and contact the recovery specialist.