We have posted some troubleshooting for this crash issue in the thread linked below.
ESO Launcher does not close elegantly PC/NA
@Sordidfairytale
Are you playing the Steam version of ESO?
If so, you'll need to set the Steam client to run as an admin as well. The ESO Launcher should also be running as an admin as well.
@Sordidfairytale
If a selective startup fixed the issue, even for a limited time, it indicates the issue is a conflict between the launcher and another program running in the background. The first programs to try disabling are anything that has a display overlay that could be conflicting with the launcher.
We have posted some troubleshooting for this crash issue in the thread linked below.
ESO Launcher does not close elegantly PC/NA