avast Home edi. can't make the options it gives

I use avast for long time now. lately I had notice that when I do a full through scan it cames out with a long list of unsolved scans:
or could not because the file is password protected.
or could not because the file this or that etc…so I go and highlighted the files and chose one of the options.: scan again or delete or chest etc…
Results are Avast can’t do any of the of request. Message is: failed to do it.
what should I do?
I use to clean the Temp files almost once every time I use the pc.
I do updates for avast and Win XP (both computers; with XP 64 bits and the XP 32 bits)
What do I do to solve that?
thanks

:slight_smile: Hi :

 You should read our "FAQs" at 
 www.avast.com/eng/faq-avast-4-home-professional.html
 AND for the particular "problem" you mentioned, see :
 www.avast.com/eng/faq-other-questions.html  .

Many programs (usually security based ones) password protect their files for legitimate reasons such as AdAware and Spybot Search & Destroy, there are others (and avast doesn’t know the password or have any way of using it even if it did know it).

When you run scans with the above programs and you delete harmful entries that they detect, a copy is kept (in quarantine/restore/backup) in case you need to reverse what you did. These are usually password protected, you should do some housekeeping and delete old backup/recovery/quarantine entries (older than two weeks or so), this will reduce the numbers of files that can’t be scanned.

By examining 1) the reason given by avast! for not being able to scan the files, 2) the location of the files, you can get an idea of what program they relate to. You may need to expand the column headings to see all the text.

Files that can’t be scanned are just that, not an indication they are suspicious/infected, just unable to be scanned.