D7 is an advanced repair utility for your computer, it displays data about the PC, cleans junk files, perform stress tests and repair common errors that can affect any computer. In addition it removes malware manually. There is no installation required to run D7, you can run it from any folder. It offers a lot of tools to optimize and clean your computer and remove nasty malware files.The panels are well organized to make it easier for you to manage, including all the features like repair and cleaning. It is a really great application to keep your PC clean once you get the hang of it.