windows 10 update service missing from service manager and unable to update

[Windows Central Question]

windows 10 update service missing from service manager tried most of the online fix nothing works.
For additional info BITS services is running and some windows update registry are missing.

unable to update error:-

There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80070424)