Windows Update Problem

[Hoibard]

I'm trying to update to Windows 10 Home, version 1511, 10586 (KB3156387) but it keeps failing. I don't get an error message, it just says that it couldn't update. The download portion is fine, it reboots, but during the update screen it just says NOPE. I can't install that. 

I've tried installing and running windows update diagnostics and it sais that is repaired the update manager but the same thing keeps happening. Update fails.

 

Some people on the internet said that I should stop all the SQL servers (or something like that). I don't know what they do. And I couldn't stop them.

I typed in cmd: net stop sqlbrowser

It respons with "Bad service name. You can get more help by typing NET HELPMSG 2185"

I typ in: NET HELPMSG 2185 and it just responds with "Bad sevice name."

 

I want to update Windows but how do I do it?

 

I've heard that you can't force update Windows 10 because it will delete all your private files. I don't want that to happen.