Some free programs to clear a computer's history are CCleaner and Privacy Eraser. CCleaner is available for both Windows and Mac OSX. It removes browsing history, DNS cache, memory dumps, recycle bin content and temporary files from a computer. It also offers advanced features such as registry cleaning.
The Privacy Eraser is compatible with both 32- and 64-bit versions of Windows. It deletes the browsing history, recent documents, temporary files, recycle bin and memory dumps of a computer. It offers various file deletion methods including simple zero-fill and US DoD 5220.22-M to permanently delete files and folders. Additionally, users can configure the software to monitor their computers in the background and clean up files automatically.