1. Empty Internet Temporary Files, cookies, and history files in Internet Explorer
Select Tools>Internet Options>
2. Install, update, and run anti-trackware software
Download Adaware by Lavasoftusa.com or
Click Star>Run>www.adaware.notlong.com
3. Install, update, and run antivirus software
For first time Trenmicro antivirus program user:
Find free online virus scan at, http://housecall.trendmicro.com/
For subsequent Trend Micro users, either purchase or download free antivirus software updates:
001. For free automatic removal of malware after initial free online scan, use Trend Micro System Cleaner (working well for me and recommended if you want automatic removal of the latest malware free).
002. Free update of this automatic removal software is available for both the matching scan engine and virus pattern file; both should be updated at the same time.
Free Sysclean Package: http://www.trendmicro.com/download/dcs.asp
Free Matching update of latest virus pattern file: http://www.trendmicro.com/download/pattern.asp
NOTE: For XP/ME systems, run antivirus with System Restore disabled and in Safe mode.
4. Check msconfig Startup for malware
5. Check Task Manager for memory-resident malware. Note: Task Manager running on Windows 95/98/ME may not show certain processes. If you are not sure about your task programs, you could use a third party process viewer to identify suspecious or unknown files. I use Process Explorer, a freeware from Sysinternals.com, http://www.sysinternals.com/ntw2k/freeware/procexp.shtml to help me identify program company names on unknown files or processes.
6. Check and review Add/Remove for malware installed without authorization and remove these unidentified programs.
Start>Settings>Control Panel>Double-click Add/Remove icon
7. Check and remove executalbe files with unusual names and icons from Windows system folder.
Reference Response #3
http://www.computing.net/security/wwwboard/forum/11772.html