I just learned the Dragonrend shout and am fighting Alduin, but this has been going on for like an hour now (no joke), and Alduin's health has not changed. I have pretty decent gear and am level 18, but this fight is going nowhere: I've died like 4 times, and I quicksaved a bunch to keep me from starting over, but this is insane! My weapon may be nothing compared to Alduin's HUGE health, but any suggestions would be greatly appreciated.
Why can’t I kill Alduin during the first fight
the-elder-scrolls-v-skyrim
Best Answer
There was aparently a bug in early-versions of the game, potentially still existing here today, where he is not able to take damage.
Some had luck in restoring his ability to be damaged by exiting and reloading the most recent save.
Since you're playing the Xbox version, the best bet would seem to be to reload the most recent save. There doesn't seem to be any definitive fixes among the results I've found.