By following this guide, you can turn that yellow exclamation mark into a smoothly running system where every Fn key press does exactly what you expect.
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While the extra keys might work to some extent with generic drivers, having the correct driver installed is crucial for full functionality. It enables features like: acpi fnbt0000 0 driver windows 10
Open Command Prompt as Administrator and run sfc /scannow to fix potential system file corruption. By following this guide, you can turn that