If your Ethernet isn't working and you have no other connection, you'll need to use a second computer and a USB flash drive. Microsoft Support

He saved the file as “ethernet_fix.txt” on his desktop.

If you are already logged into Windows, use these keyboard shortcuts to navigate: Open Quick Link Menu Open Device Manager : Use the arrow keys to select Device Manager Navigate Adapters to enter the list. Down Arrow Network adapters Right Arrow to expand the section. Update Driver Highlight your Ethernet controller (e.g., Realtek PCIe GbE Family Controller Shift + F10 (the shortcut for right-click). Use the arrow keys to select Update driver Search automatically for drivers Method 2: Command Line Installation (Advanced/Setup)

If you have some form of internet access (like Wi-Fi), Windows can often find the driver for you. Right-click the button and select Device Manager Network adapters