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I think I'll go with the suggestion of DavidR
but one question..
Is the don't show this again option only for that scan?
Will it show up again on the next scan?
Well, I probably guess it can be fixed in the settings, right?
The don't show is for that scan only. However, as I said before after a short time (and first thorough scan with archives) that choice/requirement will be almost never seen as first there has to be a detection.
The avast 4 home version is very close to the same avast 4 pro version it isn't crippled like many other free versions in relation to their paid option. So the major difference is the interactive requirement of the Home version, there has to be a difference between Home and Pro and this is one, the programmers have to eat too.
when scanning some files, the scanner hangs. When I look for that file manually, it's not there. Maybe it could have been deleted already? this is another reason why i can't make non-stop scanning. any bright ideas?
Any examples of these files and more importantly their location ?
I keep seeing reference to deleting as an option, I really wish everyone would get out of using the nuclear option for the first choice. Repair is also not something that can happen in every case either, only files that have been infected by true viruses or worms may possibly be repaired, because the infected element in the infected file can be removed. However the greatest majority of detected files are completely malicious, so nothing to repair. Move to the chest is by far the best option 'first do no harm' and then investigate.
Routine on-demand scanning:
Thorough is by its design very thorough and perhaps a little overkill for routine use, were a Standard scan without archives should be adequate.
Archive (zip, etc.) files are by their nature are inert, you need to extract the files and then you have to run them to be a threat. Long before that happens avast's Standard Shield should have scanned them and before an executable is run that is scanned.
I have only ever done a through scan with archives once shortly after installation just to ensure a clean start state, but with XP for example avast will do a boot-time scan after installation if you select it, this I believe will be quicker and reasonably effective. Like everything in life things are a compromise.