For users having problems setting weekly scheduled scans.This will resolve that issue.
For test purpose I use this example.I change weekly Intial Task Time.The date was 09/14/2014 time 6:30:18 PM.
Use the current date when making changes.Time what ever you like.
I use current date 09/14/2014 set time to 11:30:18 AM.Make sure to reboot.
AV/scan,2014/09/14,11:35:14 -5:00 GMT,C:\,Scan Completed,Auto,30788 files scanned (0 detections)
Note: If your computer is not on when the scheduled scan is set to occur, the scan will occur fifteen minutes after your computer is restarted.