If ZOS didn't answser and do not want to reinstall Windows , you can try process monitor
https://technet.microsoft.com/en-us/.../bb896645.aspx
- Download, start it, then start eso.exe (not patcher).
- Wait for login to appear then close the game
- then in procmon, do a Ctrl+F "eso.exe", right click in eso.exe in process name column column and select "include "eso.exe", it will only show you the actions mad by the game.
There will be a lot of things, just search (ctrl+f) for "elder scrolls", and try to find something, for my part, I had to do ~15-20 F3 (next result) to find something interesting = big section about files creates in C:\programdata then My doc folder). The result should be SUCCESS (if file is created, i've tested) or NAME_COLLISION if file already exists.
On my computer, It can see that first ESO copy the settings to C:\ProgramData\Elder Scrolls online, then it creates the folders in My doc folders.
Does an Elder Scrolls Online folder exists in C:\ProgramData per exemple ?
If you don't find anything more, it's really for ZOS IT team.. We couldn't help you a lot more