Freeze at login, cannot use safe mode with networking either

Hi everyone,

I walked away from my computer last night with only Google Chrome running, and 2 tabs: AOL mail, and Facebook/FarmVille. When I returned to it, the browser froze. I hit cntl alt del to close the program. Things still seemed slow after everything was closed, so I tried a reboot. However, it won't let me past login. I get the word welcome with the spinning circle and nothing else.

In safe mode, things were fine, just a little slow. I scanned with Webroot twice, and nothing was found.

I was browsing for suggestions last night and Tried sfc/scan now... That came back normal too. Another suggestion was some anti malware programs, downloaded Nader safe mode with networking. That's how I learned I get the same freeze at login with that startup.

I'm not a computer nerd but use them regularly and am willing to try some things before taking it into a shop, so I'm open to suggestions. Last month I contracted Trojans and while it was at Best Buy being repaired, they realized the hard drive was going bad, so I have a new hard drive, if that makes any difference.

Please help!

Anyone????