I have Win7 with MSE installed and my daughter has just got a new laptop with Win8 and Windows Defender installed.
The two protection systems look very similar except for the fact that there is no option of a scheduled scan on Windows Defender (at least I can't see one). The scheduled scan checks for updates and then scans the system daily or weekly which seems like a sensible idea to me.
It looks as though the only way to do a scan on Win8 is to do it manually - not a good idea, I would have thought, as it's easy to forget.
Am I missing something here? Is there a way to schedule scans?