If you don't know the exact model of your network card, these tools contain massive databases of drivers and can automatically identify and install the correct one without an internet connection. YouTube·Jagat Gyan How to install Drivers on Windows 7 without internet
The most common frustration with Windows 7 is that a fresh install often lacks drivers for the Ethernet (wired) or Wi-Fi (wireless) adapters. Without these, you cannot connect to the internet to download the drivers you need. This creates a need for an "offline installer"—a file you can transfer via USB flash drive from a working computer to the offline Windows 7 machine. network adapter driver windows 7 offline installer best