
Before downloading, you need to know which hardware your computer uses. Most systems use controllers from or Realtek .
: Double-click the Network adapters category. If you see "Ethernet Controller" with a yellow exclamation mark under "Other Devices," the driver is missing.
: Right-click the unrecognized controller, select Properties > Details tab, and choose Hardware Ids from the dropdown. This string (e.g., VEN_10EC for Realtek or VEN_8086 for Intel) helps you find the exact driver. 2. Where to Download Official Drivers