ABC

Thanks to @Berny, @harlan4096, @andrew75 for you kind replies and support. A few days have passed and il seems that we have solved this by following quite all your suggestions. In this case, we have deleted the infected emails inside Thunderbird, even from the trash, and we have compacted the Thunderbird databases. At the moments, it seems that there was no need to add any exclusions to the antivirus, and there is no need to repair the Thunderbird databases. Thank You! Regards, ABC

Hi, we have been using Kaspersky Internet Security for many years, on many PCs, without encountering any problems. Recently, with the license expiring, we wanted to upgrade to the new version. So we uninstalled the old version, without saving settings, restarted the PCs, and finally installed the latest version of Kaspersky Standard with the default settings. Then it happened that Kaspersky Standard program began to detect viruses present inside Thunderbird, such as attachments to very old emails. Failing to do the disinfection, it deleted the Thunderbird archive files and we found ourselves without any emails inside our client Thunderbird. To see our emails again, we had to restore Thunderbird archive files from quarantine, but the problem recurs every time we do a scan. How can we fix it? Why can't Kaspersky Standard disinfect or delete individual virus-containing emails inside Thunbderbird? Is it possible to create an exclusion without compromising protection from infected emails? Thank You!