Hi, my desktop has been infected with a worm and I've tried to scan using lavasoft and ewido in safe mode, but still, the worm is stubborn. It causes a pop up at the user log in screen. It goes like this. Windows update (6300-NGSRP-TMR521A-SMG-542PH-3180) Check system setting or upgrade system. Maybe your system not full patch. System still safe. http://www.microsoft.com Patch code: AS3-CTRKEA-SR After clearing some adwares detected by lavasoft and ewido, it still doesn't go away. The HT log as follows: (Moderator edit: Please do not copy and paste your logs. Instead, post them as attachments only in either .txt or .log format. To learn how to attach a log file, please see HERE.