Windows could not find a driver for your network adapter
You could try the following solutions to resolve the issue:
1] Update the Network Adapter driver
To update the Network Adapter driver, type devmgmt.msc in Start search box and hit Enter to open the Device Manager. Locate the Network Adapter drivers and expand the list. Right-click and select Update driver for each of the drivers. Restart the system and check if you are able to connect to the network now.
2] Reinstall the Network Adapter driver
Follow the procedure as explained above, but select Uninstall device to remove the driver. Then restart your system and see if Windows is automatically able to install the driver. If not open Device Manager again, right-click on Network adapters and select Scan for hardware changes. Alternatively, you could download the Network Adapter driver from the manufacturer’s website on another system from the Internet (since the Internet won’t work on your system) and transfer it to your system using a USB drive. Open the Device Manager and expand the list of Network Adapters. Right-click and select Uninstall device for all the Network Adapter drivers. Now install the drivers that you downloaded earlier.
3] Run Hardware and Devices Troubleshooter
The Hardware and Devices Troubleshooter helps in detecting common issues with connected devices (the Network adapter here) and resolve them. Click on the Start button and select the gear-like option to open the Settings menu. Go to Updates and Security for the Windows Settings menu and then click on Troubleshoot. Select the Hardware and Devices troubleshooter and run it.
4] Run the Network Adapter Troubleshooter
As explained above, go to Settings > Updates and Security > Troubleshoot. Select the Network Adapter Troubleshooter and run it. Check if running the troubleshooter fixes your problem. Read: Network Adapter not showing up, working or detected
5] Perform a System Restore
In case the Internet was working fine earlier, and the issue is recent, you might consider performing a System Restore. It will restore any changes made by recently installed programs, etc. Hope something here helps you!
