There are many ways to share your mobile connection with other devices, although probably the most popular is to create a Wi-Fi access point. However, this method has a main problem: how share the connection with a PC that does not have Wi-Fi or Bluetooth.
If that’s the case, there is still a way to do it: sharing the Internet connection using a USB cable, a simple, more stable method that has the advantage that you can use to share a Wi-Fi connection with a device that does not have Wi-Fi, such as an old PC.
How to share wired connection on Android
Sharing your Internet connection via cable is just as easy as sharing it wirelessly. The main difficulty lies precisely in find the option, since the different layers of customization and versions of Android tend to change the menus and reorganize them.
In pure Android, you will find the menu in the Android settings in the section Network and Internet. Then enter Wi-Fi zone / Share connection and, finally, mark Share connection via USB. The option can only be changed when you have your mobile connected via a USB cable to a compatible device, such as a PC.
Once this is done, both the mobile phone and the PC will think for a while, preparing the access point via USB. In Windows you will see the typical window asking you if you want your PC to be visible in this network or not.
It is recommended that you use a quality USB cable, to avoid disconnections, as well as that you do not move or touch the mobile a lot to prevent it from disconnecting and reconnecting, losing connectivity each time.
Optional: enable metered usage connection
If you are sharing a connection for which you pay for data, it is recommended that you indicate to the operating system that it is a metered-use connection. In Windows you can do this in Settings> Network> Metered usage connection.
This option tells the operating system not to use the connection as an unlimited free buffer, but to use only the necessary data. In this way, you will prevent Windows from downloading huge updates system or similar, spending all the gigabytes of your mobile data plan.