Feature update to Windows 10, version 1903?

Question

System administration

I have Windows 10 1803, when I try to update to 1903, it constantly gives different errors.
Last failed installation attempt on ‎14.‎11.‎2019 - 0x80246007
Failed to install: ‎27.‎09.‎2019 - 0x80070643 Last
unsuccessful installation attempt on ‎18.‎09.‎2019 - 0x80070643
related? Can I see the logs somewhere?

Answer 1

and now how to understand what's the matter?
everything here is like this:
2019.11.18 16:36:03.8881900 4104 12388 Handler GetPostRebootResult call failed. Status code is 0x8007139F