I am sorry to hear you are having problems but let me help you.
Based on your description it seems you have a video card connected to the system. When the video card is connected in the PCI slot, the onboard video will be disabled.
I recommend you disconnecting the video card from your system before installing the driver. Since you are using the Microsoft driver, I recommend you uninstalling the current driver and downloading the latest generic driver from our side at the following link:
I installed the extra video card because I was having these issues as a temporary solution. Nevertheless, I followed your instructions and removed the extra card. When connected directly to the samsung TV, the computer will boot and work fine, however, if I attempt to install the drivers as you suggested, it gives an error and says drivers cannot be installed. Attempting to manually install the driver (device manager, hd 4000 ... install from disk) produces a system crash. If I boot the computer connected to the TV through the AVR (no driver change) it crashes and flashes blue (clear graphics driver crash).