I have a computer in my Den, I want to set up wireless modem in my sons Computer in his Room, Dont know how to do this

You probably don't want a wireless modem, you want a wireless interface card. Do you have a wireless router already in your home and connected to your Internet access device? Is the PC a laptop or a desktop? If the former, does it have a wireless card in it already? If the latter, did you purchase a wireless card and install it? Please describe your home LAN configuration in more detail.Brian Tillman [MVP-Outlook]--------------------------------https://mvp.support.microsoft.com/profile/Brian.TillmanIf a reply helps, please vote it as helpful. If a reply solves the issue, please mark it as an answer.