My machine is trying to install KB4565503 for a week, removing it at the re-initiation process
You could check the following thread.
Hopefully, it will give you some tips.
Have you got some error code during installation?
What's the detailed error message?
You could check the following article to fix windows update errors:
We have noticed some users are reporting the same issue with yours.
If the common troubleshooting doesn't help.
Some users reported manually downloading and updating Windows 10 from build 19041.329 to build 19041.388 could solve this issue.
Also, reinstalling Windows10 in repair mode maybe helpful.
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