|'Halfduplex' sounds like a network card problem. If it is a separate network card then remove it and see if windows works without it. If it does but you need one then just purchase a new one and install it. If the NIC is onboard your motherboard then go into your BIOS and disable it, then if everything else works just purchase a separate one as above.|
You have to be a little bit crazy to keep you from going insane.