Here is a list of Top 10 Websites that can scan for viruses online for free.
When you use an antivirus software make sure it is the best one around. None of the antivirus can scan and find 100% of the viruses yet some best antivirus software’s can at least find more than 95% of the viruses. There are limitations that some antivirus software find some of the viruses that the other’s wont find