Similar to the situation I described in yesterdays article I was working on a computer with Windows XP Home Edition this past weekend and the mouse or touchpad was not working. I had navigated through various windows, control panels, etc. and needed to close some of them so I could continue. The problem was that I didn’t have a mouse and I was unable to tab to the red X in the top right corner to close the window. Use the information below to close windows on any Windows machine without a mouse installed.