This account is used to login to my school server.
For more information, I only have this problem on my Laptop. I use my Laptop at work, so I have to use "ITEDG25\nwy1" as login ID to access to to server. Sometimes I will login as "LAPTOP-RRGLMU8H\IAN" when I is not in office, this account is my primary account when I setup my Windows 10.
Another odd thing is, I synchronize all Chromes on all computers with my Google accounts. Therefore, the apps I installed in Chrome on my Laptop will automatically installed on my home computer. But only my laptop shown the warning message.