What exactly is causing the error when starting Windows 10?

Question

Windows

Hello.
Can you please tell me how to find out what exactly causes the error when starting Windows 10?

Typically, the title of the window indicates the application that is causing the error, or at least the error number. And here everything is very concise, it’s not even clear what to do and where to look.
After closing this window, the system continues to work as before. That is, there are no visible brakes, problems and errors.
There are almost no programs installed on the system. Only the essentials (drivers, codecs, player, Office, Chrome, etc. for little things).

Answer 1

How about using Process Explorer to see which process the window belongs to?