I played bg a lot, and tavern brawl, and every single game is crashing.
It is imposible to play anymore.
Sorry for my bad English, still learning.
Open Event Viwer. Click Windows Logs. Under that click Application. On the right under Actions click “Filter Current Log…” and theres a checkbox that says Error.
Should show you all the error events, and be able to see the source of each one. It’ll be “Application Error” as source and mention Hearthstone.exe in the details.