That is a most impressive and informative posts.
Well done.
It is kind of what I am doing all the time in my job. I have to troubleshoot issues just like this. Funny, I am not really well versed in desktop OSes, I don’t really know servers well...but I find myself having to run these things down.
Sigh. I guess I lean a lot on the troubleshooting techniques the Navy taught me as a jet mechanic decades ago...I wish I knew more specific things about this stuff, but as I get closer to retirement age, my brain just seems to get too full to learn new things in depth.