Thanks for the replies.
David, I did run Norman after Avast install only as on-demand, and it worked just fine with Avast. I was just too chicken and uninstalled it, hated the systray icon maybe. Regret it a bit now, but maybe better to not try installing Norman back as a second hand on-demand scanner?
There is no subject search in this site?
Eddy, I run Windows Home edition, those user/group management things are maybe for XP Pro users?
Of course I installed Avast as an administrator.
But updates for antivirus database can be managed with a Limited account?
How about the right mouse shortcut menu click for the specific file Avast check, does it work with the limited user account?
Read in the Finnish language version I have (4.5.546) instructions that I should be logged as an admin to have it work properly. Outdated info?
Must say otherwise that the language version seems to be well translated. I installed it so instead of english, so I could help my father who just got a new puter and not very fluent in english.