In order to control your computer remotely, you can use the built-in Remote Desktop Connection because it has all the necessary features to meet your demands. On the other hand you can use TeamViewer which has proven to be the best remote software that a Windows computer could have. The software is "download and run" because it can run without installation, giving you all the features that it offers. You can also use it as a service application for future use. Download the package, run the setup, and use the given ID and Password in order to connect to other computer.