So this is exactly what I did, closed launcher, opened as administrator, hit repair.
The error is occurring with Elder Scrolls Online's registration with windows.
Basically the files ESO is looking for, or looking to access, is being denied by windows because it doesn't have full admin rights.
This may not work for all of you, but it worked for me. Have a fun night.
If this works for you bump this up please so others can see.
Edited by drowned.thought_ESO on April 16, 2014 2:53AM