It seems like you're experiencing an issue with PunkBuster not recognizing the operating system when running Call of Duty: World at War (WaW) on Windows. This issue with PunkBuster is common when using newer operating systems that weren't originally supported. Here are a few steps you can try to potentially resolve the issue: 1. Update PunkBuster: - Make sure you have the latest version of PunkBuster installed for Call of Duty: World at War. Sometimes, updating PunkBuster can resolve compatibility issues. 2. Compatibility Mode: - Try running Call of Duty: World at War in compatibility mode. Right-click on the game's shortcut or .exe file, go to Properties, then the Compatibility tab, and select an older version of Windows...