If your fresh Windows 11 install has no internet, you need exactly two drivers to get back online: and WLAN (Wi-Fi) . Download these on a friend’s PC and transfer via USB.
: If you use a Surface device, Microsoft provides dedicated Drivers and Firmware MSI installers for offline deployment. 2. Microsoft Update Catalog (Manual Download)
You are stuck on the desktop with a generic Microsoft Basic Display Adapter (800x600 resolution) and no Wi-Fi driver. You cannot run an "online scanner" because you aren't online.