Normally drivers for Pinnacle or Dazzle hardware are preinstalled with the Studio installation, just plug in the hardware and the drivers should load. If necessary however you can install the hardware drivers manually. Click the following link to go to the hardware driver download page. If there is no driver listed for the desired hardware in a certain column, it means that the hardware is not supported under that operating system.
To install the driver, first disconnect the capture hardware from the system. Then run the driver file that was downloaded and follow the on-screen prompts. If the hardware is installed successfully it should look like this in Device Manager without any exclamation marks: