Windows Booting very slow after 2004 update ,

You did not need to do the other  commands as it is consistent and in sync. I suspect the errors are due to other service dependencies, and it would need to be done from a "safe mode" boot. If you still have a long booting time then it is something else, maybe a large external disk or NAS that it is trying to check out during the blank screen phase?

I don't have any attached drives at boot, or NAS.

Was the Events.evtx of any use to identifying any issue that needs to be fixed.

Events log

You did not need to do the other  commands as it is consistent and in sync. I suspect the errors are due to other service dependencies, and it would need to be done from a "safe mode" boot. If you still have a long booting time then it is something else, maybe a large external disk or NAS that it is trying to check out during the blank screen phase?

So does that mean those initial three commands are of no value if it says the WMI repository is consistent? 

In other words, since the repository is not the culprit, do you feel this is something that an update or patch from Microsoft will have to fix? 

How would I know? I am asking the question just like yourself. Perhaps you have replied to the wrong post by mistake.

So does that mean those initial three commands are of no value if it says the WMI repository is consistent? 

In other words, since the repository is not the culprit, do you feel this is something that an update or patch from Microsoft will have to fix?

Here are the errors from the Event log dump, last two days

https://1drv.ms/u/s!AviK4OVgysDigoQcOikbLFV0BbuNGA?e=6E9g7s

Event dump .evtx