, an Austrian non-profit that tests anti-virus software for free public knowledge, reports that Microsoft Security Essentials, runs faster than the leading Symantec and McAfee applications “Though MSE 1.0 was rated "very fast" in every test category – from unarchiving to launching programs – it placed sixth among 16 anti-virus products. Symantec Norton AntiVirus 2010 trailed MSE by two spots and McAfee VirusScan Plus 2010 came in 10th place. Only one other product – F-Secure Anti-Virus 2010 – was rated "very fast" in every category,” AV-Comparatives.