Open Windows Security
Click on App & browser control
Click on Exploit protection settings at the bottom
Click Program settings at the top
Add program to customize → Choose exact file path
Select where your Warcraft 3 is installed - “\Warcraft IIIretail\x86_64\Warcraft III.exe”
Scroll down to “Control flow guard (CFG)”
Tick Override system settings → set to Off → Apply
Launch Game
you’re welcome 