Q: Where can I download real viruses to test my antivirus solutions?

A: This is not a good idea. If your antivirus solution doesn’t detect the virus, then you risk a major exposure and other unforeseen consequences could happen. The best option for basic testing is to use the EICAR test file as I documented at "Q: How can I test my antivirus solution for viruses coming through different means?" (See InstantDoc ID 140212 at this website to read it.)

If you want details on the protection offered by different antivirus solutions, you can find numerous third-party organizations that perform testing of the major antivirus solutions far beyond what could be done yourself. Some good sites to visit are listed below:
•AV Comparatives
•AV-TEST GmbH
•Antivirus Ware