Internet on laptop is not working!

Hi,

So today I was trying to fix iTunes on my laptop because all of a sudden, after I updated iTunes, my iPhone wouldn't even appear on the screen as it normally would. So I was following instructions on a help question on Apple Community. It required a change in device manager where I had to update the driver software. I tried to follow the instructions but got confused and was never able to successfully complete:

Select "Browse my computer for driver software."
Select "Let me pick from a list of device drivers on my computer."
Click the Have Disk button. Note: If the Have Disk option is not present, choose a device category such as Mobile Phone or Storage Device if listed, and then click next. The Have Disk button should then appear.
Click the Browse button and navigate to C:\Program Files\Common Files\Apple\Mobile Device Support\Drivers.
Double-click the "usbaapl" file. (This file will be called "usbaapl64" if you have a 64-bit version of Windows. If you don't see "usbaapl64" here, or if there is no Drivers folder, look in C:\Program Files (x86)\Common Files\Apple\Mobile Device Support\Drivers. instead).
Click Open in the Have Disk window. Then, click Next and then Click Finish. Windows will install the driver.

So I never got my iPhone to show up on iTunes and then a few hours later, the Internet on my laptop stopped working! I tried to restore my laptop but that didn't work and I don't know how to undo all the driver changes I made from earlier today. I have an Ethernet connection via my laptop but I use a wifi hot stop from the laptop to use on my iPhone. So the Internet works on my iPhone but not on my laptop, so something I did, when going through the changes caused something to disable the ability for the laptop to successfully connect to the Internet. PLEASE HELP!