Keep in mind that any exclusions specified here apply to all on-demand scans (manual and scheduled). To speed up processing – if you have a folder on your hard disk that contains images only, you can exclude it from scanning which will reduce the overall scanning time.However, please notify AVAST Software of the problem in order that it can be fixed. To avoid false alarms – if the program reports a virus infection in a file and you are sure it is a false alarm, you can exclude the file from further scans and avoid further false alarms.This may be useful for the following reasons: It is possible to exclude certain locations, or even single files, from scanning, which means they will not be checked for viruses during any scan.