Windows 7: How to Reinstall the Microsoft Virtual Wi-Fi Miniport Adapterby Charlotte Mission
The Microsoft virtual Wi-Fi miniport adapter was introduced with Windows 7 to allow you to connect to multiple Wi-Fi networks through an emulated wireless access point. If you are experiencing problems connecting though a virtual connection or if the computer throws an error message about the adapter when Windows launches, uninstalling it may solve the problem. Windows comes preprogrammed with all the drivers and other data needed to reinstall the adapter automatically when you boot up the computer.
Open the Start menu and type “Device Manager” in the search box. Click the “Device Manager” icon to launch the utility.
Click the arrow next to “Network Adapters” to expand the listing.
Right-click the “Microsoft Virtual Wi-Fi Miniport Adapter” option and select “Uninstall.”
Click “OK” to confirm.
Restart your computer. Windows reinstalls the virtual Wi-Fi miniport adapter automatically.