Wise Windows Undo Delete - Version 2.9.8 Why the deleted files can be undone, good question. When you deleted a file, you just lose the file entry in the disk or other media storages. The file content still exists on the hard disk, Windows simply marks the hard drive and notify the file system that the space the file formerly occupy is free and can be re-usable. In most cases, Windows doesn't erase the true file content. So the file content is still there, and it is still possible to undo the deleted data. Wise Windows Undo Delete is easy-to-use data recovery software that recovers lost and deleted data from hard drive or other storage media due to deletion, corruption or formatting of any storage device. It helps in cases of hard drive corruption or formatting, virus attack, malfunction etc. Every day, Wise Windows Undo Delete helps hundreds of users recover their lost or deleted data. It supports 600+ file formats, almost all file system. Wise Windows Undo Delete is everything you need to get lost data back. Deleted documents can occur because of any of the below possibilities: Document was mistakenly deleted;