Cesar, if you cannot schedule a scan, then see my answer here:
https://support.avg.com/answers?id=906b0000000D5TFAA0
AVG Swami
Cesar, if you cannot schedule a scan, then see my answer here:
https://support.avg.com/answers?id=906b0000000D5TFAA0
AVG Swami
Cesar, Are you referring to scanning the whole computer when you open the AVG User Interface & click on 'Scan now'?.
AVG Guru