There is a special kind of frustration that comes with reinstalling Windows 7 on an older netbook or budget desktop, only to realize the Wi-Fi icon is a sad, greyed-out square with a red "X."
Drop your VEN_ and DEV_ codes in the comments, and I will find the right link for you. Disclaimer: This post is for legacy hardware support. Microsoft ended support for Windows 7 in 2020. Connecting Windows 7 to the internet today poses security risks.
Go to a trusted laptop manufacturer’s support site (Lenovo, HP, or Acer). The best working version for 32-bit Windows 7 comes from the Acer Aspire One series drivers. Search for: Realtek Wireless LAN Driver Version 1030.38.0701.2016