I had the Kaspersky AV installed for some time,but it expired few days ago. I wanted to give the avast! a try, but after installing it,it didn’t enable the resident protection, saying that i still have the KAV installed and running on my computer. The problem is that i DID uninstall kaspersky first,removed the ntfs streams, deleted all it’s registry entries,even deleted some of it’s files in the documents and settings folder and system folders-but still couldn’t “convince” avast that it’s uninstalled. Eventually, tried reinstalling avast couple of times,but that didn’t help. Does anybody know how to solve this problem,since i’m starting to get a bit frustrated (using EZ antivirus for now,but would really like to give avast a try,only if i could)
Did you try using scandisk? What OS are you using?
I have windows XP pro, with MS antispyware installed and using the built-in firewall. Why do you think i should scan my disk (i suppose you mean the windows checkdisk function), do you think that might help in some way?
See: http://forum.avast.com/index.php?topic=12079.15
KAV removal tool: http://www.ice-kav.com/utilities.php
Maybe, just delete KLIF.sys file.
According to which Kaspersky product you were using (http://www.ice-kav.com/tools.php):
KAV 5.x removal utility: KAV_Registry_Clean.zip
KAV 4.5x removal utilty: KAV_Rem.zip
AntiHacker removal utilty: KAH_Rem.zip
Ok,i’ll give it a try,thanx.
PS- congrats on the speed of your support (it feels almost like i’m chatting with you ;D )
You did not see anything yet… ;D Speed, oh, speed… welcome to avast speed forum 
Yipieeeee! 8) it worked!
Thanks very much, i hope to be satisfied with this program (well, it’s not kaspersky,but why not give it a try…)
I felt my computer a bit overloaded when had kaspersky. avast needs less resources.
Yeah, it really does use less resources that kaspersky. ;D