Remote Differential Compression (RDC) is a feature that comes with Vista, which monitors changes in your files so as to transfer them over a network with the minimal bandwidth. In effect, it eliminates the need to transfer an entire file that you have previously moved. However, this continual monitoring hinders system performance, and disabling it will speed it up.
Vista's Remote Assistance is a convenient way to allow someone you trust to access your computer over the Internet, and help you troubleshoot your computer. This service is launched on startup but may rarely be used. Disable this service if you never use it. Here's how:
- Click on the Vista Orb. Select Control Panel.
- Click on the Uninstall a Program link in the Programs node. This opens the Uninstall or Change a Program window.
- Click on the Turn Windows Features On or Off link in the left-hand pane. This opens the Windows Features window.
- Un-check the Remote Differential Compression checkbox.
- Click the OK button.