Crash 100% of time when starting either game or a match ingame after new update

I recommend you to try some stuff:

  1. Deleting your user files. For deleting your user files, you should:

a. Make sure that your Steam Cloud is disabled in Steam, AoE2 game, Properties, General.

b. Go to C:\Users\YOUR_USER\Games\Age of Empires 2 DE.

c. Copy your user folder to a safe place, it has lots of numbers.

d. Delete the original folder

e. Verify your files in Steam, AoE2 game, Properties, Local Files.

f. Open the game again. A new user folder will be created.

If this works, then copy back the files from your old user folder. Those files are in the folder -C:\Users\YOUR_USER\Games\Age of Empires 2 DE<0>\Savegame, Recorded Games and Save games.