If you own an external audio interface (Focusrite, PreSonus, RME, etc.), use the driver provided by the manufacturer. Go to their official website, download the latest version for your OS, and select it within Cubase via Devices > Device Setup > VST Audio System . ASIO4ALL (The Universal Fix)
: Cubase 5 is an older 32-bit application. While it can run on modern systems, you should use the latest 64-bit drivers provided by your hardware manufacturer, as most modern drivers are backwards compatible with 32-bit DAWs. cubase 5 audio driver