Stick with Microsoft Security Essentials or Avast for now
If we want free antivirus program, we seems to only have few choices now --- Microsoft Security Essentials and Avast.. simply because the simple and great Avira AntiVir has gone to the dark-side by adding the unwanted ASK toolbar. What is worst is it mislead users by saying it is "Avira Toolbar". Glad my team and members at Calendarofupdates.com are fast to find it out last June and immediately stopped posting updates on Avira.
Time to logon to my Windows 7 computer and remove Avira. Will install MSE!