BFU is a scripting application that will execute a series of preset commands like a Windows batch file, aimed at uninstalled programs that are uninstalled improperly, hard to remove or simply unwanted.

There are available options to let the script execution manage files, folders, ini files, Registry keys and values, hosts file content, processes loaded in memory, dll files, NT services and Winsock components. Message boxes can be displayed, the system can be rebooted, the Recycle Bin can be used for delete operations and programs can be started.

Options for the script itself include unloading the shell (i.e. killing the Explorer.exe process), pausing between commands (or all commands) and setting a minimum required version number for BFU itself to be able to run the script. BFU itself does not store anything on the system and is uninstalled simply by deleting it.