I don't think this is a Windows issue. It's before Windows even loads.
Since you've checked other USB ports, I'd hazard a guess it's time for a new keyboard. Good luck.

Lately I've been getting these mystery 10010 errors, typical wording, "the server {whatever} failed to respond..." only when I look in the registry or DCOM Config I can't find anything with that...

How has that been working for you, having disabled the service? Does anything seem to be affected aside from the error being gone?
I tried setting it to manual figuring if something really needed...

I've been seeing articles lately about Java and Flash being prone to exploits, and to avoid if possible. Obviously you do not agree. So assuming the articles may be unduly alarmist but have a grain...

Is there an advantage to having a recovery drive created in Windows over having a Windows 10 DVD created by the Media Creation tool?

I got the same error. When I looked in the registry, the CLSID said CDP Activity Store. The AppID "Default".
When I opened DCOM config, though, there was no such entry and I wasn't prompted for...