To establish a remote desktop connection in Windows 8, open the Remote Desktop app via the Start screen, type the name of the computer or its IP address in the PC Name field, and click on Connect. Make sure that the other computer is configured to allow remote access.
To enable remote access on a computer that runs on Windows 7 or Windows 8, access the System window via the Control Panel, click on Remote Settings, and select the option that allows remote access. To start the Remote Desktop app, open the Start screen, type “remote” into the search field, and select Remote Desktop from the list of results. After typing the name or the IP address of the computer you wish to access remotely, a dialog box asking you to enter the credentials of that computer should appear. Type the username and password in the appropriate fields, check the box next to the Remember My Credentials option if you don’t want to repeat this step, and click on OK.
After establishing a connection, you should gain access to the desktop or the Start screen of the other computer, depending on its operating system. In case the connection requires access to a gateway server, open the Connection Settings section of the Remote Desktop app, and type the server address in the Server Name field.