Both Media Creation Tool (MCT) and Tech Bench provide ONLY the most current iso file download, which is 10586.
Once version 10586 is downloaded and installed successfully, Windows Update will give...

Do a Repair Install. See if that will solve your problems.

https://www.tenforums.com/tutorials/16397-repair-install-windows-10-place-upgrade.html

Why do a reset if it is running nicely now ?

Anyway, perhaps you should mark your thread as Solved.
Thank you.

So, you are back in business ?

Will pressing Ctrl + Alt + Del same time do anything ?

Please just briefly describe what do you see on the splash screen.
Do you have a background picture and a cursor that can be moved around, but no box to enter password ?

If that is what you see,...