I did a fresh install of windows 7 ultimate with SP1 like I have in the past. As has also happened before after a fresh install, Windows update finds around 230 or so updates, but when I click download and install updates I get the infinite green bar going back and forth suggesting activity, but it stays at 0 updates downloaded no matter how long I leave it. This time when I turned it off I was surprised to see it was saying preparing to configure updates 230 or whatever it was, so I let it finish after about 2 hours it eventually shut down. But now whenever I turn it on Windows says 'configuring updates, then says failure configuring updates. Reverting changes. Do not turn off your computer '. I left it for over an hour and it never let me access W7, I tried manually rebooting and launched safe mode, and with networking, and with command prompt, but get the same result every time. Help! Surely there is a way of getting back into Windows, without having to reinstall?