First, indicate the operating system, each system has a different driver before formatting a PC, the drivers are backed up if in the case that you can enter the device if you have internet on the computer you only enter the internet and download driver booter and if there is, you will download and recognize the missing drivers in some cases take apart the PC and look at the motherboard which model it is and look for that model through the web and verify if they support the drivers and for the system you installed if the internet does not recognize you lan or wifi put your android phone as a router with a usb cable there is an option that lets the cell transfer internet with a usb cable