In recent years, the interest to delete data recovery software rapidly grows. Using of important electronic documents by end users and for commercial purposes has become an essential part of everyday life. For different reasons, important documents and user files may be lost. Without a recovery tool for documents and files, this may become a huge problem (which at best would lead to some inconveniences, and at worst would take lots of money). The data recovery software products of The Undelete Company apply powerful algorithms and methods, which are being constantly developed. This means that great energies expanded for lost data recovery allows organizations and end users to continue using important information of the recovered data. The Professional Undelete recovers deleted, lost files, as well as files deleted from Windows Recycle Bin. It also recovers files lost due to a virus attack, power supply failure, or program bugs. The Professional Undelete recovers files of all types, including: DOC, RTF, PDF, XLS, PPT, MDB, Visio, HTML, CSV, TXT, PAS, CPP, EML, INI; audio and video files: MP3, AVI, WAV, WMA, MOV, MPG, ASF; image files: JPEG, JPG, BMP, GIF, TIF, PNG, TGA, EML, RAW, and so on. Our software products supports recovery from removable data storage devices, such as: Secure Digital, Compact Flash, SmartMedia, SONY Memory Stick, ZIP drives, USB Hard drives etc ... The Professional Undelete recovers data from hard drives formatted in following file systems: FAT12, FAT16, FAT32, NTFS, NTFS5, NTFS+EFS . The product is compatible with Windows operational systems: Windows 95, Windows 98, Windows ME, Windows NT, Windows 2000, Windows 2003 Server, and Windows XP. In addition, a unique technology of data recovery in FAT 32 (under Windows NT, 2000, XP, and 2003 Server systems), which no other program uses, allows us to significantly increase the efficiency of recovery results.