start/ control panel/ administrative tools/ event viewer
in event viewer right click on each directory (left side panel) and choose clear all events, save or not your choice, then once directories are all clear, attempt to open the HP download and if nothing happens then you can check the event viewer to see if an error occurred. if one did, then double click on the error, in the resulting dialog box on the right hand side, third icon down , click it, this copies item to clipboard, then next open up a reply box here at the forum and right click in the open space and choose paste, this will let me look at a copy of the error.