If you set general software filters, you provide patterns every software entry is matched with directly after a scan. If a product matches with any of the patterns, the scanner immediately deletes it from the records. This filter doesn’t allow revealing entries that have been deleted like this. The general software filters help keep the data base smaller, because the countless entries will be skipped directly and not stored at all.
If you need information that has been deleted due to a match of one of the patterns, you need to change the filter patterns and re-scan the computers.