As you know, when you delete a file or folder it's easy to recover deleted items, even if you have emptied Recycle Bin. To prevent recovery of deleted files, you should replace content of deleted file by random data. Of course, this is done not manually, but by using special programs. This free tool will wipe content of deleted file, thus nobody will be able to recover it even using special tools. Content of deleted file will be overwritten using random data. You can choose for this purpose one of many security algorithms. With this program there is no need to overwrite all free disk space, which can take many hours, everything will be done very quickly.