: In the Compatibility tab, check the box for "Run this program as an administrator" . Some users also find success by enabling compatibility mode for Windows 8 and checking "Disable fullscreen optimizations" .
“I changed my Windows Display Scaling to 100% instead of my normal 125% and it started just fine.” Reddit · r/MonsterHunter · 4 years ago Monster Hunter Rise Sunbreak Fix Crashes PC Link 2
Add both and the entire game folder to your antivirus Exclusion/Exception list . : In the Compatibility tab, check the box