7) now it should go through without any error messages, if one does pop up, then please follow the instructions included in the error text. if no specific instruction is shown, then ask for help in the forums, but this should not ever occur (as this means a really fatal error occurred).
at this point the device did hopefully went to a black screen. this is the SSPL version, which is temporary. then RUU (Rom Update Utility) will instantly launch.
the blank screen is normal, now did the active sync pick back up? I know on my windows 7 I had issues with it not finding the bootloader driver had to manually do that but I think the only problem that scared you was the black screen which disconected my Active sync connection as well