For those still running into crashes after the recent patch and maintenance, please try the troubleshooting in the link below.
What do I do if ESO is crashing with the error "ESO has stopped working"?
If the basic crash troubleshooting is not helping, you can proceed to opening a ticket with customer support.
I was doing the quest of the aeon something and I was in the part where I go with khamira to kill the last dragon and the game crashes after a few seconds of entering the dragon hold it says the program stopped working.
Managed to escape the crash loop and the quest stage with the deadly crash to desktop is
"We reached Dragonhold. Now to talk to Khamira and determine how we're going to stop Kaalgrontiid from becoming the Dark Aeon.
Objective: Talk to Khamira"
Once I got there it took between 3-5 seconds for the game to crash to desktop i was extra lucky and managed to travel to a way shrine before it crashed otherwise I would have been stuck there...