Sure, reboot and try Windows update.
If the trouble shooter solved the problem - then you're good to go.
If the problem persists, the methods given by the MS engineers are sound problem solving.
The engineers explain the methods and the steps in each method very well. Hopefully, the troubleshooter resolved the issue and you will be able to update windows without additional steps. But if not, try each method and then try to update windows. When a method works, you don't have to do any more - you're done because Windows update actually updates.
They're fairly simple - you've done method 1 - Windows update trouble shooter fixed something. did it resolve the problem on your machine? I don't know, you didn't tell me if you ran Windows update or if Windows update worked.
There are 4 methods provided in the link(s)
- Windows Update Trouble shooter
You've done this already. It found and fixed a problem or problems.
Try Windows Update - if it still doesn't work - try method 2
- Clean boot
This tells you how to boot your system with a minimal set of drivers and services. If something is loaded in your normal boot that is causing the problem, this method eliminates that as a possibility.
Try Windows Update - if it still doesn't work - try method 3
- System File Checker (SFC)
This is a MS utility to ensure that the proper system files are where they belong and the files are the correct version. It runs for quite a while and folks around here recommend at least three passes (SFC works in small chunks of files at a t time, so it might take more than one pass). SFC checks files that are already on your system.
Try Windows Update - if it still doesn't work - try method 4
- System Update Readiness Tool (SURT)
This is another MS utility that also checks system files. It's a big download and it too runs a long time. Think of SURT as an offline update. SURT checks files that should be but might not be on your system.
It's not really a needle in a haystack, more of a methodology. One step at a time.
I've been up for over 24 hours - too much coffee, time for me to grab some shut-eye. I'll check back to see how it turned out.
Please post your results after you try each method and see if Window updates work. Someone else might jump in, see what you tried and where you are with finding a solution and offer additional help. If not, I'll check in after I get some shut-eye.