: Use a working computer to visit the manufacturer's official support site (like Microsoft Support or your PC maker's website).

Before we dive into the process, make sure you have the following:

If you're not comfortable with the above methods, you can use a third-party driver tool like or Snappy Driver Installer . These tools can help you install drivers without an internet connection.

If you've already downloaded the network adapter driver files, follow these steps:

If the executable fails or is not provided, manual installation is required.

| If your PC has... | Look for driver from... | | :--- | :--- | | Realtek Ethernet | Realtek PCIe Ethernet Driver | | Intel Ethernet | Intel Network Adapter Driver | | Intel Wireless | Intel PROSet/Wireless Driver | | Qualcomm/Atheros | Killer or Qualcomm driver | | Dell Laptop | Dell Support site (Service Tag) | | HP Laptop | HP Support site (Product number) |

: Move the downloaded file (usually an .exe or a .zip file) to a USB drive and plug it into the offline PC.