Maintenance for the week of October 5:
• [COMPLETE] ESO Store and Account System for maintenance – October 8, 8:00AM EDT (12:00 UTC) – 12:00PM EDT (16:00 UTC)
The "repair" option is checking every files from the game. If during the repair, the launcher is installing something, it's probably because the game didn't get these files in the first place. A repair can be a long option, but worth a try.
@Jariath, 209 and 210 are linked, you can follow this article to fix this issue.