Keeping this in consideration, what does File is a decompression bomb mean?Ī decompression bomb or zip bomb is amalicious archive file that contains a lot of repeated datathat can crash the program reading it. Files that can't be scanned are just that, filesthat for one reason or another cannot be scanned.It's not an indication that those files are suspicious or infected it simply means that these files need another element before theycan actually be opened and examined by AvastAntivirus.