Did you check the hints from my last post?
Code:
After the latest Windows update "1903" I turned on "Controlled Folder Access." This was keeping ESO from accessing my Addons folder. To fix your problem open "Windows Security" go to the "Virus & Threat Protection" tab and turn off "Controlled Folder Access."
Windows Defender Security center -> Left panel click on the 3 - icons to expand the menu -> Virus & threat protection -> "Controlled folder access".
Or did you check what Tonyleila wrote about your documents folder? He is right, there must be way more fodlers and files in there than just the 1 folder you got. Something is wrong with it.