In the top right corner of the window click the Settings link.
In the top part of the Settings window go to the Scan tab.
In the left part of the Settings window in the Scan section select Full Scan.
In the right part of the Settings window in the Security level section click the Settings button.
In the Full Scan window on the Additional tab select Scan methods and Scan technologies.
Close the Full Scan window by clicking the OK button.
Close the Settings window by clicking the OK button.
Close the main application window.
You can find more detailed information about iChecker and iSwift technologies in KB5460. You can also find more detailed information about heuristic analyzer in Kaspersky Small Office Security 2 for PC in KB5705.
You can create your list of objects to perform full scan. If you do not want to scan the whole system and installed programs, you can specify the range of objects to scan. See KB6088, to know how to do it.