Your computer communicates with other web-based services, applications and websites through various ports. Different applications use these ports, including e-mail, instant messaging and VoIP services. Each application uses a specific port to communicate with your operating system. The UDP and TCP process refers to the two available protocols a port can use to communicate with your computer. The TCP process communicates with you by exchanging streams of data; the UDP protocol communicates with you by sending data over an IP network. To enable UDP process as a port's protoco, access your firewall's settings.
Navigate to your Control Panel menu by clicking "Start" and "Control Panel."
Click the preference that says "Security." Click "Windows Firewall" and then click the preference displayed on the upper-left corner that says "Allow a program through Windows Firewall".
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Click the icon that says "Add port." Give the UDP port any name you want , then enter it in the "Name" text bar. This can be the name of the service using the port.
Type the number of the port you want to enable UDP process for in the "Port number" field. Click the "UDP" check-mark in the "Protocol" section, then click "OK" to save the changes. You have enabled UDP process for the desired port.