If you suspect your original DLL is corrupted, use Windows' built-in repair tool: Stack Overflow Command Prompt as Administrator. sfc /scannow
Rather than replacing critical system files in C:\Windows\System32 , it is significantly safer to place patched DLLs directly into the application's folder. How to make OpenGL apps in 64-bit Windows? - Stack Overflow opengl64dll patched
Place these DLLs in the game/emulator folder without touching system files. They are open-source and audited for security. If you suspect your original DLL is corrupted,
Patches for opengl64.dll might be released to: opengl64dll patched
"Thank you for the update, Elias. It’s been very dark in the buffer."