Disable Driver Signature Enforcement: Windows 10 often blocks older drivers. You can disable this via the "Advanced Startup" options in your recovery settings.
Once the MI4 is recognized, you may experience "crackling" or dropouts. To fix this: Set your Power Plan to "High Performance." Steinberg Mi4 Windows 10
The Steinberg MI4 was a cornerstone of home recording in the mid-2000s, bundled specifically with Cubase System 4. While its hardware remains robust, getting a legacy FireWire-style interface to run on a modern Windows 10 environment requires patience and specific technical workarounds. Steinberg Mi4 Windows 10