The download history does not clear when you press the clear button, and even thou i have turned the download history off, it still ads downloads to the history, i even tried to select the changes to keep it for one day, but it still shows all downloads.

How do i remove my download history?

To turn the downloads history off click mouse right button on the "History" in the tree with Groups, Filters, etc. Click "Settings", and uncheck "Save history of downloads".