some updates were not installed issue

For now I'm not going to do a repair install because it scares the hell out of me:

Repair Install

Going through that gives me pain and scares me my windows will only get worse. This tutorial is to complex/risky for my mind at the moment.

Cause I only recently recovered from a major windows boot failure. My windows is working quite fine now. Only the issue in this topic and some other minor things I can live with.

Is there really no other way to fix those errors? And how do I know what errors they are? All errors around my windows update files?

I tried doing some of the updates manually by downloading them and it said "The update is not applicable to your computer" when I fire it up.

Does that mean I don't need to install the updates?

Max; Noel is very busy so let me try to explain.

I looked at your previous threads which point to many problems in a short period of time.
You have also used a registry cleaner of questionable ability.
You also have many errors.
I do believe that is why Noel has suggested a Repair Install.
I would take heed to Neal's recommendation.

Repair Install

This is another option.

Clean Install Windows 7

Take you time and read through both once or twice.

Alright but don't most users got some amount of errors? Am I below or above the average error count?

It's not only the amount of errors; it's what errors they are. Noel has analyzed your logs and gave his opinion. He is the expert.
Just follow Noels suggestion.