After visiting a site popups indicated I had all kinds of infections and wanted me to download a program. I did not download the program but instead ran softis anti virus software. It found and quarantined two malware programs but told me to run a full scan (which I had already done) to remove the trojan. The computer then restarted windows and I was not able to log on to a user. I tried to restart in safe mode and it still will not let me log on as a user. Any ideas of how I can get my comoputer clean?