Step 2: Under the Compatibility tab, check both Disable fullscreen optimizations and Run this program as an administrator options. Step 1: Right-click the shortcut icon or the executable file of the game and choose Properties. Luckily, you can modify the properties of the game to set the related settings to fix the issue. Besides, the fullscreen optimization feature is also reported as one of the reasons for HOI4 crashing. If it lacks permissions, you are very likely to encounter the crashing issue during the gameplay. The game requires administrator permissions to access certain critical files for proper functioning. Fix 1: Give Administrator Permissions and Disable Fullscreen Optimization If HOI4 keeps crashing after restarting, then you can try the following solutions. If you encounter the issue unfortunately, you should first restart the game or your computer, as a simple restart can help to reconfigure certain settings and may fix the problem. However, similar to many other games, Hearts of Iron 4 was not immune to the crashing issue, and many players have reported the HOI4 crashing problem on the forum. Released on 6 June 2016, this video game is available on multiple platforms including Microsoft Windows, macOS, and Linux, and it has won great popularity among game lovers. It was developed by Paradox Development Studio and published by Paradox Interactive.

Hearts of Iron IV, also known as Hearts of Iron 4 or HOI4, is a grand strategy computer wargame focusing on World War II.

Fix 3: Verify the Integrity of The Game File.

Fix 1: Give Administrator Permissions and Disable Fullscreen Optimization.

Hearts of iron 4 steam fix