Use Realtek HD Audio Driver Removal Tool (official). Running just the uninstaller from Control Panel leaves registry entries. The removal tool scrubs everything.
Many users explicitly sought out R279 because newer drivers sometimes introduced "static noise" issues or latency problems (DPC Latency) that affected music production or competitive gaming. R279 became known as a "stable baseline" driver. Use Realtek HD Audio Driver Removal Tool (official)
: Can help generate a basic structure if you provide the technical specs as prompts. Use Realtek HD Audio Driver Removal Tool (official)
: Troubleshooting "Error Code -0001" or "No Driver Found." Use Realtek HD Audio Driver Removal Tool (official)