ESET is rubbish. Had to do the obligatory support round for family over the holidays. One machine would sporadically not finish sending and email via Outlook, a

ESET is rubbish. Had to do the obligatory support round for family over the holidays. One machine would sporadically not finish sending and email via Outlook, and even rebooting doesn't fix that issue. You just had to wait about a day and it would be ok again. You couldn't send any mail during that time. I tracked it down to the Outlook plugin of ESET. I saw it also has other features like a browser plugin, and intercept for TLS encrypted traffic. These kinds of security products always make your system less secure, not more. All those complex components that hook into every part of your system are buggy and contain vulnerabilities that malware can target. Use Windows Defender and nothing more.