Unfortunately the only information I can find is either your posts or post pertaining to explorer.exe error with that message.
It’s certainly puzzling.
I would suspect this is a 2004 problem. Can you still roll back or is it too late?
If too late you could try an in-place repair:
I recommend an in-place upgrade repair.
To repair Windows without losing any data then follow the instruction here:
https://www.tenforums.com/tutorials/16397-repai...
This will also upgrade you to the latest version of Windows - currently 2004 - if you’re not already running this..
In a nutshell you just download the media creation tool, run this & choose to upgrade now or if you are creating media on another PC you download the tool, run it & choose to create a USB or CD then insert the Windows 10 media (USB/DVD) in the problem PC & run setup from within Windows.
Please note a repair install is not a reset, this is a last attempt at repairing a PC without a clean install. If this fails to repair the problem then usually a clean install is required.
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.