Information3/9/2013 3:36:46 PMMicrosoft-Windows-Windows Defender1000None"Windows Defender scan has started.
The “official” recommendation is to avoid scans, but you can’t avoid scheduled scans, and on my system a scheduled scan crashes the antimalware service, locks up Automatic Maintenance, and fails to generate any warning in the Action
Center. The only indication of a problem is that you see the frozen Automatic Maintenance indicator superimposed on the Action Center Icon. So you need to be vigilant about the scheduled scan. You can follow the latest developments here: