For personal computers running a Windows operating system, there are several free anti-virus programs that work well, including Avira, Avast, AVG, Kaspersky, etc. Your level of anti-virus software should reflect how important it would be to restore your PC to a normal working order, if the PC became highly infected with a debilitating virus. This also ties in with the importance of backups for your data.
For businesses that need more anti-virus certainty and confidence, the paid versions of Norton, McAfee, and PCMatic are software solutions that should be compared and considered carefully.
Stonehill Computer Solutions – General computer support and repair in Berkeley Springs and the 4-State area.