Make your windows 7 laptop into wifi hotspot

Make sure you have installed Microsoft Virtual Wifi miniport adapter

 

Then make command as follows:

C:\Windows\system32>netsh wlan set hostednetwork mode=allow ssid=MyWifi key=password keyUsage=persistent

To start your network
C:\Windows\system32>netsh wlan start hostednetwork

To Stop your network
C:\>netsh wlan show hostednetwork

Share your internet connection by going to network sharing center