Jvw History eraser with popup killer and ip spam blocker is Windows compatible. Do you assume that all the personal information on your computer can be accessed only by you? Do you have an ex-spouse or ex-partner with a grudge against you, have you been "Grassed"? Has anyone ever put a floppy disk in your computer? Is someone after your job? Can you honestly say that you really know for sure what may have been accidentally downloaded or purposefully hidden on your PC?