I'm a bit fuzzy on the actual procedure. After you unsuccessfully try
installing the printer, go to Device Manager and you will see two 1284.n
drivers for the HP printer when you connect the printer to a USB port. You
need to change the driver for the second of these in Device Manager to "USB
Printing Support" (saying "Let me pick" the driver). You should eventually
see "USB Printing Support" listed under "Universal Serial Bus controllers."
When you install the drivers, use the port "USB001-Virtual printer port for
USB." Do not use the port "DOT4-HP Photosmart 7150 series Printer." For a
driver, use the inbox Vista HP Photosmart 7200 series driver.