If you experience an issue where the game continuously crashes to desktop when you try and launch it please do the following:
- Close Steam
- Navigate to My Documents > Paradox Interactive > Hearts of Iron 4
- Delete the "map" and "sharedcache" folder
- Disable any outdated mods
- Restart Steam and launch the game
If this doesn't work please follow the same procedure as above but delete the entire Hearts of Iron 4 folder and try again.
Backup your savegame folder if you wish to keep your save games!