Disk CleanUp for Windows 95/NT is a freeware disk utility designed to clear previously deleted files completely. Deleting a file will normally just remove the file's directory entry, leaving the data itself on the disk. Disk CleanUp will completely eliminate the contents of your deleted files. It gives you the option to specify an NSA-approved disk-erasing method and background execution priority. Disk CleanUp works with any FAT16 or FAT32 hard drive, as well as MS Windows NTFS volumes. Disk CleanUp can be configured to optionally place its program icon in the taskbar notification tray.