True, but I hate MSE also....my opinion is Avira and MSE suck big time, Avast and AVG are without a doubt the best free AV.
I like Avast as #1 for AV, and probably MSE as the #2 for the runner up. Sooners, what problems did you have with MSE when you had it? Avast is still the best. But some people went with MSE so they didn't have to do the annual license key renewal, which is required for Avast. That's the ONLY advantage that MSE has over Avast. Avast has better protection and updates as much as 3 times a day on a 12 hour cycle. MSE only updates once a day. MSE full scan takes forever on my old XP machine.
All the other AV softwares are just too bloated and only update once a day. I heard that Panda has something called Virtual Cloud which is supposedly good and light and resources. I hate Avira! Too many false positives! AVG was good until version 8 onward. Than it became too bloated, and that is why I switched to Avast. Avast has most up-to-date protection.
I use Avast Free
Malware Bytes On Demand
Web of Trust (WOT)
Jack