If your Windows 10 system is showing a "Missing Intel High Definition DSP" error or no audio, it usually means the driver for the Intel Smart Sound Technology (SST) or the associated audio controller is missing or corrupted. HP Support Community
for a particular laptop model, such as an HP Spectre or Lenovo ThinkPad? intel high definition dsp driver windows 10 download link
Manufacturer Support (Manual): Visit your PC manufacturer's support site (e.g., Lenovo Support, HP Support, or Dell Support) and search for your model to find the "Intel Smart Sound Technology" or "Realtek Audio" driver. If your Windows 10 system is showing a
DSP stands for Digital Signal Processor. Unlike the main audio driver (which handles speakers/headphones), the DSP driver manages: If you see a yellow exclamation mark next
Realtek, Audio, or Drivers). Select the .inf file (e.g., IntcAudioBus.inf or Realtek.inf).