In "Manual scan" setting there is only one action provided for "when virus or spyware is found".
Suppose if I set it to "Clean the files" then in that case if f-secure is unable to clean a infected file then there is no second option provided that can be followed.
It would be better if a second option is provided. So if the infected files cannot be cleaned then there is option that it will be Quarantined or deleted automatically.
As I know, "clean the files" means do every possible thing to infected file(first try to safely clean it, then try to quarantine or delete it).
But I agree with you