The update (both signatures and product) are set to check hourly
The autoscan has 2 components:
- quick scan: once a day
- full scan: once a week
Normally, those autoscans are not needed to be manually triggered, or to wait to have the computer in idle mode
We have developed a special library that allows the autoscan to instant pause when the processor or the harddrive activity is above a certain levels (autocalibrate take place immediately after install

)
So, let's say the full autoscan has started; and, after several minutes you open a document, or make another processor/hdd intensive activity
The autoscan will pause instantly and will resume (again, instantly

) after the CPU and HDD are dropped under precise values..