Windows cannot repair computer automatically

Late friday I attached a new NANO Ipod to my laptop to charge and load music. I left it for the day and when I returned later my computer had frozen, completely. I had to turn it off to restart. When it came back, I attempted to eject the Ipod, but got a message that siad it was still in use - I couldnt figure out what was using it and simply disconnected it, unplugging the USB.
It subsequently froze again, and I re-powered it again, this time I got the mesasge that windows shut down incorrectly and needed to do a scan disc. And so it began.

It continued to cycle through the scan check, then go to my log in window, but nothing worked. No pointer, I couldnt put in my password, nothing. So I turned it off again, and again it went through the drill. eventually it was just cycling through the shots I've uploaded, restarting and going through again and again. I allowed it to run its scan(s) for more than 40 hours. When I returned last night my log in window was on, so i logged in. The welcome sign appeared and with it the spinning (I'm thinking) signal but nothing prevailed. It did this for 30 + minutes and I could do nothing else. No other buttons or commands have worked at all.

So, I turned it off again. Is there any hope? Anything I can do or do I need to take it to a shop?

I cant run any of the system specs or any of the things you've outlined - I cannot get past the log in window.

Thanks for any assitance,

-Mike