Installato Avast e non si avvia

Ho installato Avast 4.7 home edition ma non si avvia perchè trova ancora Kaspersky in esecuzione benchè io lo abbia rimosso dal sistema. Come posso fare?
Grazie

Andy

This is an English forum only… sorry…
To remove Kaspersky, see: http://forum.avast.com/index.php?topic=12079.15
KAV removal tool: http://www.ice-kav.com/utilities.php or http://www.ice-kav.com/downloads/util/KAV_Registry_Clean.zip

Please do NOT use Kaspersky anti-hacker together with Avast!
It seems that Kaspersky writes something in the registry that is picked up by Avast! that makes Avast! think there’s another AV program installed.
Although this is not the case (KAH is a firewall, not an anti-virus program) Avast! will nag you about this.