How does windows get proxy settings?

Question

Windows

In the Internet Options in the network settings section there are proxy server settings. By default, the Automatically detect settings checkbox is checked.
How does this automatic parameter detection work???
Apparently, these parameters are determined incorrectly, which leads to Internet stupidity.
But I don't understand where these settings come from.

Unchecking is not an option, because. there is no access to all computers of a network. Kerio gateway, proxy is disabled on Kerio

Answer 1

https://habr.com/ru/sandbox/19972/