Major computer Antivirus software makers are providing free online virus scanners . These tools are capable of removing most threats from your computer without installing additional application or computer Anti-Virus software. There will be no compatible problem if you already have one anti virus. These online tools are scanning with up-to-date virus definitions.

** For Windows XP/ME/2000
1. You must be Online
2. You need Administrative privilege to run these tools.
3. Disable System Restore
4. Restart your system in Safe Mode with Networking
5. Most of the Online Virus Scanners prefers Internet Explorer with a Medium Security level.
6. Use more that of these tools to scan your PC completely and allow to remove all threats .

Symantec Security Check
F-secure
BitDefender
Mcafee FreeScan
Panda ActiveScan
ewido
Trend Micro™ HouseCall


After that restart your computer in normal mode and perform online virus scan once again to confirm that there is no threat left on your computer.