Connecting Android mobile to Windows 10 using Wifi

Steps:

1. Check the laptop/ PC connected to the network via Ethernet Cable.
2. Click windows button + X, and select windows power shell (Admin) [Command prompt]
3. Type netsh wlan show drivers and press enter key. If it shows error, the Wifi is not presented in Windows 10.
4. Find the line "Hosted network supported". If it says Yes, follow the below instructions:

Creating Network:

1. Type netsh wlan set hostednetwork mode=allow ssid=name key=password
2. Type netsh wlan start hostednetwork

Note: ssid can be any name, and password should be min. 8 characters

Creating Sharing:

1. Click windows button + X and select Network connections
2. Select Ethernet option in the left Tab, and click on Change adapter options
3. Select Ethernet icon, right-click, and select Properties option
4. Select Sharing Tab, Check-in the "Allow other network users to connect through this computer's Internet connection". 
5. Then select the hosted network u want to share internet and click ok button.

Connection to Android device:

1. Open the settings and click on Wifi.
2. Select the network name created in ssid above, and enter the password typed above.
3. The internet is now connected to the Android device via Laptop's/ PC's internet.

Terminating the connection:

1. Click windows key + X and select windows power shell (Admin) [Command prompt]
2. Type netsh wlan stop hosted network and press enter button.
3. Go back to the change adapter options and check out the "Allow other network users to connect through this computer's Internet connection". 

Credits: Wikihow