Take the Kaspersky Challenge: See what your current antivirus is missing. 

Our free online virus scanner is a great way to find out if you have any viruses or spyware on your machine without having to uninstall your current antivirus software or install a new one. Most importantly, you can see what viruses your current antivirus software let slip through! You just need to be online and using Internet Explorer.

Kaspersky Online Scanner

The Kaspersky Online Virus Scanner uses Microsoft ActiveX technologies to scan your computer for malicious code and offers the same exceptional detection rates as other Kaspersky Lab products.

This free online virus scanner is very powerful and scans your machine very deeply, so it could take hours to complete. We suggest running it during a time of low activity. Take the Kaspersky Challenge and see what malware your current antivirus software missed - you may be surprised.