Below are listed some of the free on line virus scanners (note we do not endorse any of these products we are providing them as a means for you to check to see if you are infected, please bare in mind online scans do not provide the most thorough scans and do not remove most viruses.)
Trend Micro HousecallTrend Micro HouseCall thoroughly scans your computer for viruses, spyware, and known security vulnerabilities. This free service is designed to demonstrate the power of Trend Micro technologies in a fast and easy solution.
BitDefender Online Scanner
BitDefender Online Scanner is a fully functional antivirus product. It features all required elements for thorough antivirus scanning and effective cleaning: it scans your system's memory, all files, folders and drives' boot sectors, providing you with the option to automatically clean the infected files.
Freedom Online Virus Check
Freedom Online Virus Check is a free online anti-virus scanner for web users. Freedom Online Virus Check allows you to scan your hard drives, diskettes, CD-ROMs, network drives, directories, and specific files for any hidden viruses, Trojans or worms. Freedom Online Virus Check uses state-of-the-art technology to scan your PC for all types of viruses.
McAfee FreeScanMcAfee FreeScan helps you detect thousands of viruses on your computer. Based on the award-winning McAfee VirusScan engine, FreeScan searches for viruses, including the latest known "in the wild" viruses, and displays a detailed list of any infected files. Should viruses be found, FreeScan even provides links to more information about the viruses and what you can do to clean your system.
Panda Active Scan
Antivirus - Antivirus detects and eliminates all types of viruses, worms and Trojans.
Antispyware Deep anti-spyware scan detects spyware that other security suites can�'t.
TruPrevent - Catches viruses that are so new than your signature-based antivirus software cannot yet recognize them.
Daily Updates - Active Scan is updated at least once a day, so each scan will be able to detect even the latest viruses and spyware to emerge.
One-click Scan - No need to install any programs, just connect to the Internet and simply click whenever you want to check if your computer is infected by viruses or spyware.