james_69 :
Didn't mean to go on and on but I'm a little disappointed in " Tom's Hardware " being a mouthpiece for Microsoft.
With all due respect your story reeks of untruth. I downloaded the tools to make a USB stick to install Windows 10 and it did not tell me on the proper version that "This file cannot be installed on this computer!"
What operating system are you currently running? If it is Windows XP or earlier you are going to have to do a clean installation using the USB drive at bootup.
Also as to the internet problems: Go to Device Manager, uninstall the driver that Windows 10 put in or that you put in (most likely the latter case) and tell it to scan for new device. It should automatically find and install a basic driver or the actual driver for your device.