RapidAntivirus is a fake (rogue) antispyware application.
Use the following free programs to remove RapidAntivirus.
Malwarebytes’ Anti-Malware. Designed to quickly detect, destroy, and prevent malware, spyware, trojans.
http://www.myantispyware.com/2008/08/28/malwarebytes-anti-malware-free-spyware-malware-trojan-remover/
Download, install and update.
Run, select “Perform Quick Scan”, then click Scan.
he scan may take some time to finish,so please be patient.
When the scan is complete, click OK, then Show Results.
Make sure that everything is checked, and click Remove Selected.
SUPERAntiSpyware is Free for home use. Easily remove over 1 million pests and threat components.
http://www.myantispyware.com/2007/11/06/superantispyware-free-for-home-use/
Download, install and update.
Run, click Scan your computer, click Next.
The scan may take some time to finish,so please be patient. When the scan is complete, result of scanning will be open, click OK.
Click Next to start removing the found threats.
Use both for maximum effect.