Turn your Windows 10 laptop into a mobile hotspot by sharing your Internet connection with other devices over Wi-Fi. You can share a Wi-Fi, Ethernet, or cellular data connection. If your PC has a cellular data connection and you share it, it will use data from your data plan.
Step 1: Select the Start button, then select Settings > Network & Internet > Mobile hotspot.
Step 2: For Share my Internet connection from, choose the Internet connection you want to share.
Step 3: Select Edit > enter a new network name and password > Save.
Step 4: Turn on Share my Internet connection with other devices.
Step 5: To connect on the other device, go to the Wi-Fi settings on that device, find your network name, select it, enter the password, and then connect.