If you can’t find a Windows 7 driver for your built-in Wi-Fi (common on newer hardware), buy a cheap that explicitly says Windows 7 compatible — it will include its own driver CD.
Here’s a solid, step-by-step guide to installing a Wi-Fi driver in Windows 7. how to install wifi driver in windows 7
Go to the support page of your laptop brand (e.g., Dell Support, HP Support, or Lenovo Support) and search by your Model Number or Serial Number . If you can’t find a Windows 7 driver