How do I fix my Command Line Interface? My computer has been really slow lately and it takes at least 2 minutes it feels like to load a single page. It just won't go fast anymore. Along with the command line interface issue it also says Internet Explorer has stopped working. I don't think or I hope there are no viruses in here. I have done a disk cleanup on my main drive and deleted browsing history. Any help would be appreciated thanks. I have an Acer Notebook 5100 series running Windows Vista Home Premium.