My gut reaction is that Verizon was too lazy or cheap to write the drivers for their product. As I read it, the Multi-WWAN driver is for devices that have wireless broadband hardware built-in. I'd download the HP Multi-WWAN driver for a similar mini (make sure you get the matching O/S). Either the driver is going to install or it's going to balk at the lack of necessary hardware. I'd bet that even if it balks, the drivers get installed anyway. If that doesn't work, I'd call Verizon and ask them to support their product. You're paid them for the device and continue to pay them for monthly access. HP Mini's are quite popular so you can't be the only person having this problem.

I am guessing you have a pop up blocker on that is blocking the download box from appearing if you clicked on those links I provided and still could not get it. Yes any program you install will have to make changes to your computer how else would it install, it has to make changes to the registry and add itself into the system. Just removing Norton from add remove is not sufficient you need to follow the directions I provided and the link to the removal tool for Norton. Norton is extremely intrusive and even using the removal tool will not get it all. How are you getting the question for Avast to make changes if you are saying it did not even download? Tell us exactly what is happening when you go to the download links provided. Do you see a blue box appear with the .exe and the save dialog? If not what do you see what is happening? Did the pdf for install instructions help?

Linked below are dozens of very good tutorials for Win 7. Take a look through. Some are worthwhile but others seem just fancy dickering but to each his own. Your page would scroll if it was longer. No doubt you are viewing a very short page. This too is why your page up or down fails to do anything. Here is a link that might be useful: Windows 7 help

You don't have to do anything. Since you have only one Skype listing, you have only one Skype program. When you did your Skype install, it was installed on top of whatever was there.