If Grandpa was talking about the website he would say I'm having difficulties with the options on the website, he is actually having problems with the installation, and I think his user account on his computer is set to a different priviledge then administrator, most likely user or power-user. I would suggest logging into the account of administrator on the computer and trying to install the application, if you are unsure speak to a local tech to log into the account and give you administrator priviledges.