The core server failed to renew the SSL certificate, the server went down & the issuer name of the SSL certificate was ESET

⌛Time it takes to read this article: 2 minutesWhat to do if the core server's free SSL certificate has expired and what to do if the SSL certificate issuer name is changed to ESET in the browser after installing the security software ESET. I have summarized it.

I uninstalled McAfee and installed ESET Internet Security, but I got a problem that outlook mail could not be opened [memorandum until resolution]

⌛Time it takes to read this article: 3 minutesI uninstalled the security software McAfee and installed ESET Internet Security, but a problem occurred where I could no longer open emails in Outlook.
In this article, we will explain the process that led to the resolution and also explain ESET.