Open the Device Manager , right-click the "Unknown Device" (or the Wi-Fi adapter), and select "Update driver" to search for the files you downloaded manually.
Unfortunately, I couldn't find much information on the "zeb-usb300wf1 driver". It's possible that it's a niche or proprietary driver, or it may not be widely used. However, I can suggest some general troubleshooting steps and resources that might be helpful:
Visit the Zebronics Driver Download page and use the search bar to look for " ZEB-USB300WF1